Search results “The speed of light travels”
Interstellar Travel: Approaching Light Speed
Is interstellar travel doomed to remain in the realm of science fiction? Sticking to near future space propulsion only, how close can we get to the speed of light? This video looks at the current spacecraft speed records with Apollo 10 holding the record for the fastest manned spacecraft, New Horizons probe for the fastest Earth escape velocity and the Helios probes for the fastest heliocentric velocity. But Solar Probe Plus will beat that when it launches in 2018. While Voyager 1 doesn't set any speed records, it was the first spacecraft to leave the solar system, so therefore the fastest solar system escape velocity by default. For beating these speeds, this video explores what is possible in the near future only, so no antimatter, Alcubierre drives (warp), ramjets, etc... The EM drive is left out until it's proven with actual reproducible results in space. Project Daedalus and the updated Project Icarus represent sound concepts for fusion spacecraft. IKAROS was the first successful demonstration of solar sail technology but hopefully the planetary society is not far behind with their LightSail cubsat (not covered in this video). But what appears to have the most potential to reach the nearest star to our own, Proxima Centauri and it's newly discovered planet Proxima b is Breakthrough Starshot. Thousands of super lightweight laser sail nanocraft will be launched into space then the light beamer, a ground based laser array will propel these spacecraft to 20% light speed within minutes. *All sources used in researching this video are listed in the end credits* Music: "Inspired" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 License http://creativecommons.org/licenses/by/3.0/
Views: 3547791 Jimiticus
Light Speed Travel
The speed of light is more of a hot topic than ever nowadays. It is the speed at which photons travel in a vacuum- and is the fastest speed achievable within the universe. As creatures of exploration and innovation, understanding light speed has naturally led us on a quest to try and determine a method with which we can reach it, and eventually one day exceed it. Si-Fi fantasy or not, a galaxy of the Milky Way’s vastness would require such speeds to make exploring it somewhat of a possibility for a race such as humanity’s. But there are some drawbacks. The difficulty of developing light speed travel, or propulsion systems that could travel at a high percentage of it, is enormous- and may be impossible altogether. Furthermore, our current understanding of physics suggests that were you to travel at this immense speed, you would be making more of a sacrifice than you first anticipate, as light and time go hand in hand at the limit of possibility. Nonetheless, we are investing, investigating and innovating, and examining the skies and the stars, as we search for a way to travel at the ultimate speed of light… FOLLOW MY NEW TWITTER! https://twitter.com/SEA_yt_ Want more videos? Click here to subscribe: https://www.youtube.com/sea1997?sub_confirmation=1 Join the NEW, OFFICIAL PARTNER #SeaSquad 100K Discord Server! https://discord.gg/SEA MUSIC: - CO.AG: https://www.youtube.com/channel/UCcavSftXHgxLBWwLDm_bNvA - Chris Zarbriskie: https://soundcloud.com/chriszabriskie FOOTAGE: - A Space Journey (8m Exhibition): https://www.youtube.com/watch?v=Un5SEJ8MyPc - Green Nebula Fly-By: https://www.youtube.com/watch?v=JbC6KVzn-m0 - Blue Nebula Fly-Through: https://www.youtube.com/watch?v=EaM9kDPa_AY - Spinning Galaxy Loop: https://www.youtube.com/watch?v=7NyEX8DjOTw - 4K Nebula Eye Scene: https://www.youtube.com/watch?v=eKqc7xdrx5E&t - 1-Minute Galaxy Zoom: https://www.youtube.com/watch?v=XuVyYbXjeQ0 - Satellite Dish: https://www.videezy.com/members/beachfront - Provided by Beachfront under a Creative Commons license - Particles: https://www.youtube.com/watch?v=G_Q6I7nj23A - Provided by RoyaltyFreeTube under a Creative Commons License - Rocket Blast Off: https://www.youtube.com/watch?v=BKX-1G-zuUQ - Nebula Space Scene: https://www.youtube.com/watch?v=eoEVCau7hio - Provided by RoyaltyFreeTube under a Creative Commons License - Void / Dust Footage: https://www.youtube.com/watch?v=Nw6Y5RldX9I Remaining outstanding footage provided by Videezy.com - Popular Playlists! - • Creepy Playlist: https://goo.gl/Gxoqyy • Out of this World: https://goo.gl/AV9ePP • Conspiracy Cases: https://goo.gl/mqmF6P • G-News: https://goo.gl/17K9yu - Out of this World - • The Fermi Paradox: https://youtu.be/lFypvFYO7LQ • The Cold Spot: https://youtu.be/PQHhLHh_8go • Bootes Void: https://youtu.be/SPtSBLpyBu4 - Conspiracy Cases - • 11B-X-1371 Mystery: https://youtu.be/FK314DWnPGs • Dyatlov Pass Incident: https://youtu.be/zkdAUESx7Vk • Denver Airport Conspiracy: https://youtu.be/mUKHMGDe6-w - GD - • G-NEWS: https://goo.gl/17K9yu • "The Best Of" Lists: https://goo.gl/412EaD • Community Commentary: https://goo.gl/tgJvPv • Full GD Playlist: https://goo.gl/dWkXfo - Maps From Hell Series - • Bloodlust Episode: https://youtu.be/W1D2Dxvi0cg • Yatagarasu Episode: https://youtu.be/mmi8db-JV2E • Plasma Pulse Series Episode: https://youtu.be/-plAW84qvB4
Views: 224885 SEA
What If You Traveled Faster Than The Speed Of Light?
The speed of light might seem fast, but what if you went faster than it? Download the new FireFox here: https://mzl.la/lifenoggin Subscribe: https://bit.ly/SubLifeNoggin | Get your exclusive Life Noggin merch: http://keeponthinking.co Support Life Noggin on Patreon: https://patreon.com/LifeNogginStudios Follow Life Noggin! Facebook: https://facebook.com/LifeNoggin/?ref=br_rs Instagram: https://instagram.com/lifenoggin/ Twitter: https://twitter.com/lifenoggin Official Website: https://lnstudios.co/ Watch More Life Noggin: Latest Uploads: https://youtube.com/watch?v=4A6XkYpmidU&list=PL8L0MzSk_V6JtEDRfRMyb6rFd1acqYSlO Big Questions: https://youtube.com/watch?v=rJTkHGXMdb0&list=PL8L0MzSk_V6LtaKh-Eqj7Cs4Tmf5iQPx4 Outer Space: https://youtube.com/watch?v=rJTkHGXMdb0&list=PL8L0MzSk_V6IPWXQvW3Exk9bqGzOdj8Qq Inside the Human Body: https://youtube.com/watch?v=FVnnM6hZ7Wk&list=PL8L0MzSk_V6JoZQ-Sy3eK2rjiDsamxCQs Popular Videos: https://youtube.com/watch?v=1bVfzBD-40E&list=PL8L0MzSk_V6IYeU-cNGR6NYHW19GMiPNy We are LIFE NOGGIN! An animated and educational web show designed to teach you all about your awesome life and the brain that makes you able to live it! We answer questions about everything from inside the human body to deep outer space. Stay tuned for more videos on every Monday and Thursday! Keep On Thinking. Life Noggin Team: Director/Voice: http://lifenogg.in/PatGraziosi Executive Producer - Ian Dokie: http://instagram.com/iandokie Director of Marketing: http://lifenogg.in/JaredOban Animation by Robert Grisham Written by Michael Sago: https://twitter.com/MichaelSago Sources: ftp://umpgal.gsfc.nasa.gov/pub/daac_ozone/Lecture4/Text/X/whatislight.html https://imagine.gsfc.nasa.gov/science/toolbox/emspectrum1.html https://www.grc.nasa.gov/WWW/k-12/Numbers/Math/Mathematical_Thinking/how_fast_is_the_speed.htm https://www.space.com/37244-why-is-the-speed-of-light-so-slow.html http://www.bbc.com/news/uk-scotland-glasgow-west-30944584 http://micro.magnet.fsu.edu/primer/java/speedoflight/ http://hyperphysics.phy-astr.gsu.edu/hbase/geoopt/refr.html https://www.youtube.com/watch?v=VNv0Yzk00qg https://www.britannica.com/science/Cherenkov-radiation https://www.scienceabc.com/pure-sciences/cherenkov-radiation-is-there-a-sonic-boom-equivalent-for-light.html http://math.ucr.edu/home/baez/physics/Relativity/SpeedOfLight/cherenkov.html https://www.space.com/24701-how-long-does-it-take-to-get-to-mars.html https://sservi.nasa.gov/articles/how-far-is-it-to-mars/ https://exoplanets.nasa.gov/trappist1/ https://www.space.com/35796-trappist-1-alien-planets-travel-time.html http://www.trappist.one/#about http://www.phy.olemiss.edu/HEP/QuarkNet/time.html https://www.britannica.com/science/time-dilation
Views: 1481245 Life Noggin
Filming the Speed of Light at 10 Trillion FPS
What is the fastest thing we as the human race know of? Gav and Dan try and film that.
Views: 9146910 The Slow Mo Guys
The Speed of Light is NOT About Light
The Speed of Causality Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Support us on Patreon! http://www.patreon.com/pbsspacetime Help translate our videos! http://www.youtube.com/timedtext_cs_panel?tab=2&c=UC7_gcs09iThXybpVgjHZ_7g The speed of light is often cited as the fastest anything can travel in our universe. While this might be true, the speed of light is the EFFECT and not the CAUSE of this phenomenon. So what's the cause? On this week's episode of Space Time, Matt helps explain what the speed of light REALLY is and why it’s the cosmic speed limit of our universe! "The Real Meaning of E=mc²": https://www.youtube.com/watch?v=Xo232kyTsO0 "Are Space And Time An Illusion?": https://www.youtube.com/watch?v=YycAzdtUIko ----------------------------------------­­--------- SOURCES: Einstein's derivation or the Lorentz transformation from the invariant speed of light: Einstein, Albert (1916) "Relativity: The Special and General Theory" http://www.archive.org/stream/cu31924011804774#page/n159/mode/2up Lorentz Transformation without invariant speed of light, from relativity, isotropy, and consistency of frame transitions (closure group postulate): von Ignatowsky, “Das Relativitatsprinzip,” Archiv der Mathematik und Physik 17, 1–24 (1911) Berzi1 & Gorini, J. Math. Phys. 10, 1518 (1969) http://dx.doi.org/10.1063/1.1665000 Pelissetto & Testa, American Journal of Physics, 83, 338, (2015) "Getting the Lorentz transformations without requiring an invariant speed" http://arxiv.org/abs/1504.02423 https://en.wikipedia.org/wiki/Derivations_of_the_Lorentz_transformations ----------------------------------------­­--------- COMMENTS: Denny Hiu https://www.youtube.com/watch?v=AwwIFcdUFrE&lc=z124w3dhotmtx34lk224wzxyhwqufdefe . (RadimaxRadimaX) https://www.youtube.com/watch?v=AwwIFcdUFrE&lc=z124xv145zzkzpiei233spnqjzraejjig04 Epsilon Lazerface https://www.youtube.com/watch?v=AwwIFcdUFrE&lc=z12fv5ejyzyyc1dbv04cgzhyxknfzdnjcao LassieDog999 https://www.youtube.com/watch?v=AwwIFcdUFrE&lc=z12zz13iezrqh142k23kitgxuqjqy35su Tenebrae https://www.youtube.com/watch?v=AwwIFcdUFrE&lc=z134yj2pcvrkhnu4u04ccdxhuufvuvkomd0 ----------------------------------------­­--------- REFERENCES: Krauss & Scherrer 2007 http://arxiv.org/abs/0704.0221 Vardanyan, Trotta & Silk, 2011 http://arxiv.org/abs/1101.5476 ----------------------------------------­­--------- Let us know what topics you want to learn more about:http://bit.ly/spacetimepoll
Views: 3618708 PBS Space Time
Riding Light - Traversing the Solar System at the speed of light
Ever imagined what it would be like to traverse the Solar System at the speed of light? This is a video which attempts to re-create the out-of-this world experience. The ultimate ride begins on the surface of the sun, hurling you outwards at 186,000 miles per second, past the orbiting planets, the asteroid belt, until finally the sun appears as a faint glimmer among a sea of other stars. Enjoy
Views: 638272 ogniank
Speed of light around Earth, 7.5 laps per second
If you could make light bend around Earth, it would orbit 7.5 times per second (near the surface). That's 0.13 seconds per orbit! Play around with the SPEED in settings, as I uploaded this at 60 frames per second. *Animation by Dr. James O'Donoghue using NASA imagery. *Share/use as you wish, credit is appreciated.
Views: 754745 Dr James O'Donoghue
Why can't you go faster than light?
One of the most counterintuitive facts of our universe is that you can’t go faster than the speed of light. From this single observation arise all of the mind-bending behaviors of special relativity. But why is this so? In this in-depth video, Fermilab’s Dr. Don Lincoln explains the real reason that you can’t go faster than the speed of light. It will blow your mind.
Views: 2482653 Fermilab
How Fast Is Light?
Light goes so fast that it broke our classical understanding of how speed works. We can fix our understanding with a little relativity and a space-time diagram, but you have to let go of any preconceived notions you might have about motion. ________________________________ VIDEO ANNOTATIONS/CARDS Complete Twins Paradox: https://youtu.be/UInlBJ4UnoQ Ultimate Guide to Relativity: https://youtu.be/FdWMM6aXpYE What Are Gravitational Waves? https://youtu.be/HmiPDvz0WVU What the HECK is a Photon?! https://youtu.be/73XdlgzSKws ________________________________ RELATED YOUTUBE VIDEOS PBS Space Time on Galaxy Collision: https://youtu.be/_P1xKh_kZFU ________________________________ HUGE THANK YOU TO THESE PATRONS ** Daniel Bahr, Ilya Yashin, Drake Dragon (TMDrake), Morgan Williams, Rick Finn, Kevin MacLean, David Bronakowski, Robert J Zapolis, Nicholas Ursa, Evgeny Ivanov ** ________________________________ SUPPORT THE SCIENCE ASYLUM Patreon: http://www.patreon.com/ScienceAsylum Advanced Theoretical Physics (eBook): https://gumroad.com/l/ubSc Merchandise: http://shop.spreadshirt.com/scienceasylum/ ________________________________ OTHER SOURCES https://www.jpl.nasa.gov/infographics/infographic.view.php?id=11489 https://home.cern/about/updates/2015/04/first-successful-beam-record-energy-65-tev https://physics.stackexchange.com/questions/43404/minkowski-diagram-hyperbola-and-invariant-quantity-of-relativity ________________________________ LINKS TO COMMENTS MusicalRaichu - Featured Comment: https://www.youtube.com/watch?v=UInlBJ4UnoQ&lc=UgyxXoFooiHYw1ghzIZ4AaABAg IoDavide1 - Featured Comment: https://www.youtube.com/watch?v=UInlBJ4UnoQ&lc=UgzyhI0A2-hn9BTq1YJ4AaABAg ________________________________ IMAGE CREDITS Juno Space Probe: https://commons.wikimedia.org/wiki/File:Juno_space_probe.jpg US Flag: https://commons.wikimedia.org/wiki/File:Flag_of_the_United_States.svg
Views: 86271 The Science Asylum
SPEED OF LIGHT : What Would Happen if we Travel Faster than the Speed Of Light
What would happen if we travel faster than the speed of light . Hope you will like the video thanks for watching and don't forget to subscribe and let me know any other video you want me to make in the comments. Subscribe to our channel : https://goo.gl/qCiemj Join us on Facebook : https://www.facebook.com/Informii-786719934773878/ Follow us on Instagram : https://www.instagram.com/informii/ Follow us on twitter : https://twitter.com/informiii
Views: 6888 informii
3 Ways Man Could Travel Faster Than Light
670,616,629 miles per hour; that is the speed limit of the universe. Bonus Videos & "Chemicals of Reality" Premium Video Available @ http://www.patreon.com/strangemysteries NEW SISTER CHANNEL "Beyond:" https://www.youtube.com/channel/UCdFur5pgxJtvnmdvHeExeaA Narrated by Jack Daniel www.jackdanielvo.com Ending trailer by Ben Patrick Johnson The speed of light. Nothing with mass can travel faster, and because of this limit, interstellar travel towards stars more than a hundred lightyears away seems problematic, and downright impossible for galaxies that are upwards of millions of lightyears away. But what if we could cheat physics? The theory of special relativity forbids any object from moving at light speed. It doesn't matter how small it is, how much weight it's lost recently thanks to its fancy new diet, it is physically impossible for anything of mass to haul ass directly from A to B at faster-than-light speed. The idea of wormholes being used to cross the galaxy at faster-than-light speed has been discussed at length by sci-fi authors and guys who live in their mom's basement for decades now. In real life, teleportation does not work in the same way it does in the movies. Whereas in Star Trek you can shoot blue lasers at something, dissolve it and have it reappear at another point in space, in reality, what you've just done is destroy the original object and make a copy.
Views: 451925 Strange Mysteries
Speed of Light: How Does Light Travel?
Watch this video to learn more about the Speed of Light. See this and over 140+ engineering technology simulation videos at http://www.engineertech.org. Simulations provided free under a Department of Labor grant awarded Eastern Iowa Community Colleges. To learn more visit http://www.eicc.edu.
Visualizing video at the speed of light — one trillion frames per second
MIT Media Lab researchers have created a new imaging system that can acquire visual data at a rate of one trillion frames per second. That's fast enough to produce a slow-motion video of light traveling through objects. Video: Melanie Gonick/MIT Read more: http://web.mit.edu/newsoffice/2011/trillion-fps-camera-1213.html Project website: http://www.media.mit.edu/~raskar/trillionfps/ Follow us on Twitter: http://twitter.com/mitnews
Interesting Facts About The Speed of Light
*Subscribe: http://goo.gl/dgHQSp The speed of light in a vacuum is 186,282 miles per second (299,792 kilometers per second), and in theory nothing can travel faster than light. In miles per hour, light speed is, well, a lot: about 670,616,629 mph. If you could travel at the speed of light, you could go around the Earth 7.5 times in one second. #sciencetoday #Facts #SpeedofLight FAIR-USE COPYRIGHT DISCLAIMER * Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, commenting, news reporting, teaching, scholarship, and research. - This video has no negative impact on the original works - This video is also for research and commenting purposes. - It is not transformative in nature. - we only used bits and pieces of videos to get the point across where necessary. If you have any issues with our "Fair Use", please contact us directly, for an amicable and immediate attention. [email protected] Thank you in advance for your understanding and cooperation.
Views: 750367 SCITODAY
Earth-Moon-Mars distances to scale, at LIGHT SPEED!
This is the distance between Earth, the Moon and Mars with the correct distances but with Earth, Moon and Mars 20 times bigger (so you can see them!). The real-time speed of light is shown. *Animation by Dr. James O'Donoghue using NASA imagery. *Share/use as you wish, credit is appreciated.
Views: 864278 Dr James O'Donoghue
Light Speed Travel Visualized
Hello and welcome to What Da Math! In this video, we will talk about the speed of light. Patreon page: https://www.patreon.com/user?u=2318196&ty=h Enjoy and please subscribe. Other videos here: https://www.youtube.com/playlist?list=PL9hNFus3sjE7jgrGJYkZeTpR7lnyVAk-x Twitter: https://twitter.com/WhatDaMath Facebook: https://www.facebook.com/whatdamath Twitch: http://www.twitch.tv/whatdamath The video introduction made by Daniel Bates His YouTube channel with more of his work is here: https://www.youtube.com/mroutrochannel The new music theme made by Bogdan Bratis Check out his work here: http://www.bratis.uk/
Views: 205706 Anton Petrov
Would Headlights Work at Light Speed?
If you were driving at the speed of light and turned on your headlights, what would happen? Twitter: http://www.twitter.com/tweetsauce Instagram: http://www.instagram.com/electricpants Sources and extras below!! Thanks to Jude for asking me this question on twitter! https://twitter.com/stefanikj5/status/550865272895447041 “The Life of the Cosmos” by Lee Smolin: http://www.amazon.co.uk/The-Life-Cosmos-Lee-Smolin/dp/0195126645 “In Search of the Multiverse” by John Gribbin: http://www.amazon.co.uk/In-Search-Multiverse-John-Gribbin/dp/0141036117 “The Pig That Wants to be Eaten: by Julian Baggini: http://www.amazon.co.uk/The-Pig-That-Wants-Eaten/dp/1847081282 Relevant MinutePhysics videos: https://www.youtube.com/watch?v=IM630Z8lho8 https://www.youtube.com/watch?v=NnMIhxWRGNw light slowing down in glass: https://www.youtube.com/watch?v=FAivtXJOsiI a different perspective from Sixty Symbols about light slowing down: https://www.youtube.com/watch?v=CiHN0ZWE5bk Why is “c” the speed of light? http://math.ucr.edu/home/baez/physics/Relativity/SpeedOfLight/c.html Car at light speed: http://www.sydneyobservatory.com.au/2010/what-happens-when-a-car-travelling-near-the-speed-of-light-turns-on-its-headlights/ https://van.physics.illinois.edu/qa/listing.php?id=1355 http://www.scienceforums.net/topic/82191-i-am-driving-my-car-at-the-speed-of-light-and-i-turn-on-my-headlights-what-do-i-see/ http://www.desy.de/user/projects/Physics/Relativity/SpeedOfLight/headlights.html Light speed is the same in all inertial frames of reference: http://www.physlink.com/Education/AskExperts/ae558.cfm https://van.physics.illinois.edu/qa/listing.php?id=2605 http://hyperphysics.phy-astr.gsu.edu/hbase/relativ/mmhist.html#c1 Relativistic addition of velocities: http://demonstrations.wolfram.com/EinsteinsFormulaForAddingVelocities/ http://cnx.org/contents/[email protected]/Relativistic_Addition_of_Veloc doppler shift: http://commons.wikimedia.org/wiki/File:XYCoordinates.gif#mediaviewer/File:Doppler-velocity89.jpg Relativity: http://www.refsmmat.com/jsphys/relativity/relativity.html http://www.astro.virginia.edu/~jh8h/Foundations/quest7.html Light speed and catching-up to light. http://www.pitt.edu/~jdnorton/Goodies/Chasing_the_light/ http://math.ucr.edu/home/baez/physics/Relativity/SpeedOfLight/speed_of_light.html http://www.askamathematician.com/2010/11/q-what-would-you-experience-if-you-were-going-the-speed-of-light/ http://scienceline.ucsb.edu/getkey.php?key=1571 https://van.physics.illinois.edu/qa/listing.php?id=1354 Other good relativity resources: http://newt.phys.unsw.edu.au/einsteinlight/ Light echo footage: http://www.spacetelescope.org/videos/heic0617a/ “fine-tuned” universe: http://io9.com/5989467/how-does-the-anthropic-principle-change-the-meaning-of-the-universe http://en.wikipedia.org/wiki/Fine-tuned_Universe http://rationalwiki.org/wiki/Anthropic_principle Irrational numbers: http://mathworld.wolfram.com/IrrationalNumber.html a million digits of pi: http://www.piday.org/million/ THERE'S MORE VSAUCE!! Vsauce2: http://www.youtube.com/Vsauce2 Vsauce3: http://www.youtube.com/Vsauce3 animated drawings by Guy Larsen https://twitter.com/guylar rocketship animation by Eric Langay https://twitter.com/ericlanglay
Views: 6349903 Vsauce
What If You Run At The Speed of Light ?
Arnold's Instagram - https://www.instagram.com/meet_arnold/ What If You Run At The Speed of Light ? - - I can make a very cool advertising for you, just send me a mail ► [email protected]
Views: 10972123 Meet Arnold
Stephen Hawking - Rocket to the Future
Stephen Hawking examines how we may some day, travel to the future. Into The Universe With Stephen Hawking - Time Travel This video belongs to Discovery Communications and is being used for educational purposes only
Views: 2927995 WeAreStarStuff51
At the speed of light, what would you see?
The Universe from light's point of view.
Cherenkov Radiation: What If Something Travels Faster Than The Speed Of Light?
Can anything travel faster than the speed of light? Is it even possible for something to undertake the “speed of light” travel? And what if something can actually travel faster than light? What is Cherenkov radiation and how is it related to the speed of light? These are some of the most popular questions related to the speed of light and the plausibility of a light-speed travel. Well, as of now, it’s not possible for humans to travel at the speed of light. You may have heard people saying that nothing travels faster than the speed of light. Well, that statement is not entirely correct, unless the medium of light’s travel is specified too. It’s true that light travels the fastest, but that’s true only when it travels through a vacuum. Because in other mediums, like water, there are things that can travel faster than the speed of light. This is what Cherenkov radiation is all about. Cherenkov radiation is observed when something travels faster than the speed of light in a given medium. It’s a bluish glow that you can see in the water of nuclear reactors. Just like you hear a sonic boom when something travels faster than the speed of sound, Cherenkov radiation is observed when something travels faster than the speed of light. SUBSCRIBE to get more such science videos! https://www.youtube.com/channel/UCcN3IuIAR6Fn74FWMQf6lFA?sub_confirmation=1 Follow us on Twitter! https://twitter.com/abc_science Follow us on Facebook! https://facebook.com/sciabc Follow our Website! https://www.scienceabc.com
Views: 28488 Science ABC
GTA 5 - Travelling Faster than the Speed of Light!
I traveled 4 BILLION times the SPEED OF LIGHT! - For MORE GTA 5 Videos, LIKE & Subscribe! ► HELP US GET 3,000,000 SUBSCRIBERS: http://bit.ly/SubNPFL The GTA 5 Mod: https://www.gta5-mods.com/scripts/quick-silver-net Join my Discord: https://discord.gg/nought My Twitter: https://twitter.com/noughtpointfour My Instagram: https://www.instagram.com/freddypye/ My Snapchat: https://www.snapchat.com/add/freddiepye Thanks for watching my GTA 5 video! If you want more GTA 5, GTA Online, GTA 5 Funny Moments or GTA 5 Experiment videos, Subscribe!
Views: 2510372 NoughtPointFourLIVE
[HD] Travel from the Sun to Jupiter at the Speed of Light
SUBSCRIBE for more videos like this ! Made by Alphonse Swinehart https://vimeo.com/aswinehart Latest video: https://youtu.be/Z8_Aqe1KPQY 3:12 mercury 6:00 venus 8:18 earth 12:39 mars 19:40 vesta 22:58 ceres , pallas 26:08 hygea 43:16 jupiter Fluidscape by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) Source: http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1100393 Artist: http://incompetech.com/
Views: 175713 razvan524
What Happens When You Go Faster Than The Speed of Sound?
What happens when you go faster than the speed of sound? What is a sonic boom? How does a sonic boom happen? WEBSITE (You can suggest a topic): http://theinfographicsshow.com SUPPORT US: Patreon.......► https://www.patreon.com/theinfographicsshow CHAT: DISCORD.....►https://discord.gg/theinfographicsshow SOCIAL: Facebook...► https://facebook.com/TheInfographicsShow Instagram..► https://www.instagram.com/theinfographicsshow Twitter........► https://twitter.com/TheInfoShow Subreddit...► http://reddit.com/r/TheInfographicsShow -------------------------------------------------------------------------- Sources for this episode: Some Images used under license from Shutterstock.com
Views: 563876 The Infographics Show
Can We Travel Faster Than Light? with Dr. Miguel Alcubierre
Can humanity build an Alcubierre warp drive? Can we go faster than light? Dr. Miguel Alcubierre was inspired by Star Trek the Next Generation's example of warp drive faster than light technology on the starship Enterprise. In 1994 he wrote a paper on how we could bend and warp space and time to travel faster than light within the rules of Einstein's general relativity. NASA has and is currently exploring if it is possible to bend the fabric of space and achieve hyper fast space travel with the Eagle Works lab. John Michael Godier spoke with Dr. Miguel Alcubierre on the feasibility of the Alcubierre warp drive and if there has been any developments within physics, including the use of dark matter or dark energy, and anti-gravity, to be able to make this possible. "The warp drive: hyper-fast travel within general relativity", Alcubierre, 1994. http://arxiv.org/abs/gr-qc/0009013 "Hyperfast Interstellar Travel in General Relativity", Krasnikov, 1995. https://arxiv.org/abs/gr-qc/9511068 Harold White, Warp Field Mechanics 101 https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20110015936.pdf Harold White, Warp Field Mechanics 102 https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20130011213.pdf Website: https://www.eventhorizonshow.com/ Patreon: https://www.patreon.com/EventHorizonShow Twitter: https://twitter.com/jmgeventhorizon Instagram: https://www.instagram.com/jmgeventhorizon/ Thank you Dr. Miguel Alcubierre Mark Rademaker Steve Ryan
Views: 311519 Event Horizon
How Light Travels Through Time | The World's First Time Machine | Spark
If you shine a light at a spaceship traveling at half the speed of light, will the way they see the light be different? If you were to travel faster than the speed of light, would you age slower? Full documentary available here: https://www.youtube.com/watch?v=Yc9_ZFxMvMw Subscribe to Spark for more amazing science, tech and engineering videos - https://goo.gl/LIrlur Follow us on Facebook: https://www.facebook.com/SparkDocs/ Follow us on Instagram: https://www.instagram.com/spark_channel/?hl=undefined Content licensed from DRG Distributions to Little Dot Studios. #spark #sparkdocumentary #timetravel #timetraveleinstein #speedoflight #spacetravel #timetraveldocumentary #einsteindocumentary #physics
Views: 4215 Spark
Journey through the universe beyond the speed of light [HD]
Excellent documentary, mind blowing and superbly narrated. Enjoy Narrated by Alec Baldwin.
Views: 5130304 LordDanofLondon
The sad story of reaching the speed of light or a black hole
The speed of light and black holes. What happens when at the speed of light? What about a black hole? This video explains how time dilations works with very fast relativistic speeds. The equation and the intuition behind the logic. We cover some of Albert Einstein relativistic physics theory. - - - - - - - - - - - - Support me! (Patreon, newsletter, donations): http://bit.ly/HiggsinoSupport - - - - - - - - - - - - #Physics #Relativity #Light Time dilation graph Source: http://www.daviddarling.info/encyclopedia/T/timedilation.html Relativistic energy graph. Source: http://www.wikiwand.com/en/Tests_of_relativistic_energy_and_momentum
Views: 435252 Higgsino physics
Why You Can Never Reach the Speed of Light: A Visualization of Special Relativity
This video is an entry for the Breakthrough Junior Challenge 2015 which gives a unique visualization of Special Relativity using hyperbolic geometry. This idea was inspired by the famous woodcut by M.C. Escher Circle Limit III. http://www.mcescher.com/gallery/recognition-success/circle-limit-iii/ I liked the idea of making a video on Special Relativity because I had already explored the use of M.C. Escher’s woodcut Circle Limit III as a teaching tool for explaining the hyperbolic geometry of Minkowski spacetime. The main intuition is that the principle of Relativity asserts that the manifold of frames of reference is homogeneous and isotropic, and there are exactly three geometries associated with this: Sphere (which exists as rotations through space), Plane (which represents Galilean Relativity) and the Hyperbolic Plane (which exists as rotations through spacetime). I wanted to find a way to use this intuition without overwhelming the audience with technical terms. When the timelike unit vectors in 2+1 spacetime (which correspond to velocity four-vectors) are projected onto a disk (see Wikipedia: “Hyperboloid model”), the result is the Poincare Disk Model, which is (almost) the geometry portrayed in Circle Limit III. I had never seen anyone to use this as a visualization of Special Relativity, and so I decided to make the video. Public Domain Image Sources (in order of appearance): Einstein: https://commons.wikimedia.org/wiki/Category:Albert_Einstein#/media/File:Albert_Einstein_1921_by_F_Schmutzer.jpg pulse of light: https://pixabay.com/en/light-bokeh-yellow-red-frequency-681186/ stopwatches: https://pixabay.com/en/stopwatch-clock-many-time-hours-911767/ crowd: https://pixabay.com/en/men-personal-many-human-silhouette-695653/ beakers: https://pixabay.com/en/beakers-experiment-flasks-research-309864/ map: https://pixabay.com/en/world-map-earth-global-continents-146505/ wall clock: https://pixabay.com/en/clock-analog-time-watch-147257/ starburst: http://www.cliparthut.com/starburst-clip-art-clipart-ntmLZk.html Electric Current: https://pixabay.com/en/current-electric-charge-electricity-738818/ mouth: https://pixabay.com/en/lips-sexy-mouth-kiss-passion-150003/ water waves: https://pixabay.com/en/banner-header-wave-wavy-background-904889/ cosmic lake: https://pixabay.com/en/graphics-virtuoso-technique-and-great-954343/ Galileo: http://fineartamerica.com/featured/1-galileo-galilei-oprea-nicolae.html flashlight: https://pixabay.com/en/light-torch-lamp-electric-159858/ Poincare: https://commons.wikimedia.org/wiki/File:Henri_Poincaré-2.jpg Einstein: https://commons.wikimedia.org/wiki/Category:Portraits_of_Albert_Einstein#/media/File:Einstein-formal_portrait-35.jpg Lorentz: :https://en.wikipedia.org/wiki/Hendrik_Lorentz#/media/File:Hendrik_Antoon_Lorentz.jpg Minkowski: :https://en.wikipedia.org/wiki/Oskar_Minkowski#/media/File:Minkowski.JPG star cluster:https://pixabay.com/en/star-clusters-galaxy-star-ngc-602-74052/ trash can: https://pixabay.com/en/trash-can-garbage-can-waste-basket-23653/ Einstein and Lorentz: https://en.wikipedia.org/wiki/Hendrik_Lorentz#/media/File:Einstein_en_Lorentz.jpg car: https://pixabay.com/en/car-red-vehicle-automobile-classic-160337/ bicycle: https://pixabay.com/en/vintage-bicycle-old-pretty-937960/ jet: https://pixabay.com/en/jet-airplane-plane-military-158846/ spacetime: https://en.wikipedia.org/wiki/Minkowski_space#/media/File:World_line.svg atomic cloud: https://pixabay.com/en/explosion-nuclear-blast-cloud-308363/ stopwatch: https://pixabay.com/en/stopwatch-racing-timer-timing-153398/ Software used to create this video includes iMovie, Keynote, Pixelmator, MathType, and Quicktime Player.
Views: 2645655 Kadi Runnels
Traveling the solar system of the speed of light | 3D 2019 🛸
Light Speed : 299,792,458 M/S 300,000 KM/S 1,079,252,848 KM/H 670,616,629 MP/H RED SIDE SHOP STORE https://goo.gl/hVMWE9 MUSIC (3 Background Music Mixed By Me) 1-Give us Time - Dark Ambient Music (CO.AG Music) 2-Im walking through the dust - Dark Ambient Background Music(CO.AG Music) 3-Kevin MacLeod ~ The House of Leaves (EricArchive) WIKIPEDIA: The speed of light in vacuum, commonly denoted c, is a universal physical constant important in many areas of physics. Its exact value is 299,792,458 metres per second (approximately 300,000 km/s (186,000 mi/s). It is exact because by international agreement a metre is defined to be the length of the path travelled by light in vacuum during a time interval of 1/299792458 second. According to special relativity, c is the maximum speed at which all conventional matter and hence all known forms of information in the universe can travel. Though this speed is most commonly associated with light, it is in fact the speed at which all massless particles and changes of the associated fields travel in vacuum (including electromagnetic radiation and gravitational waves). Such particles and waves travel at c regardless of the motion of the source or the inertial reference frame of the observer. In the special and general theories of relativity, c interrelates space and time, and also appears in the famous equation of mass–energy equivalence E = mc2. The speed at which light propagates through transparent materials, such as glass or air, is less than c; similarly, the speed of electromagnetic waves in wire cables is slower than c. The ratio between c and the speed v at which light travels in a material is called the refractive index n of the material (n = c / v). For example, for visible light the refractive index of glass is typically around 1.5, meaning that light in glass travels at c / 1.5 ≈ 200,000 km/s (124,000 mi/s); the refractive index of air for visible light is about 1.0003, so the speed of light in air is about 299,700 km/s (186,220 mi/s), which is about 90 km/s (56 mi/s) slower than c. For many practical purposes, light and other electromagnetic waves will appear to propagate instantaneously, but for long distances and very sensitive measurements, their finite speed has noticeable effects. In communicating with distant space probes, it can take minutes to hours for a message to get from Earth to the spacecraft, or vice versa. The light seen from stars left them many years ago, allowing the study of the history of the universe by looking at distant objects. The finite speed of light also limits the theoretical maximum speed of computers, since information must be sent within the computer from chip to chip. The speed of light can be used with time of flight measurements to measure large distances to high precision. Ole Rømer first demonstrated in 1676 that light travels at a finite speed (as opposed to instantaneously) by studying the apparent motion of Jupiter's moon Io. In 1865, James Clerk Maxwell proposed that light was an electromagnetic wave, and therefore travelled at the speed c appearing in his theory of electromagnetism.[5] In 1905, Albert Einstein postulated that the speed of light c with respect to any inertial frame is a constant and is independent of the motion of the light source.[6] He explored the consequences of that postulate by deriving the theory of relativity and in doing so showed that the parameter c had relevance outside of the context of light and electromagnetism. After centuries of increasingly precise measurements, in 1975 the speed of light was known to be 299792458 m/s (983571056 ft/s; 186282.397 mi/s) with a measurement uncertainty of 4 parts per billion. In 1983, the metre was redefined in the International System of Units (SI) as the distance travelled by light in vacuum in 1/299792458 of a second. Follow! FB : https://www.facebook.com/redsidefanpage Insta: https://www.instagram.com/redside_channel/
Views: 30104 RED SIDE
3 Things 'Faster Than Light'
These 3 things go "faster" than the speed of light. How's that even possible? Subscribe: http://www.youtube.com/channel/UCj1gf... ↓Want more info?↓ More about the experiment: Marissa Giustina’s research: http://arxiv.org/abs/1511.03190 Advanced scientific note about Doppler: If there is a light moving away from you at constant velocity in static flat (Minkowski) space-time, no matter how red it is, you will never conclude it is going faster than light. But, here I am discussing the conclusions one might come to if you mistakenly use Doppler in the context of the curved space-time of the universe (where there is expansion). Interpreting the huge redshift as a result of the doppler effect, could make one think that galaxies we see are moving away at speeds approaching light speed. And since what we are actually seeing is light from those galaxies from billions of years ago, and given that the universe is expanding, you might be tempted to say that they have since "accelerated" to faster than the speed of light. You might go further and say that there are more distant galaxies that we can't see which are moving away even faster. So you might conclude there are galaxies moving faster than light in the universe. But the redshift isn't from doppler and this "acceleration" of the expanding universe isn't actually causing a true increase in velocity. Sometimes astronomers do say there is a faster than light "recession speed" by pretending the expansion of the universe is causing distant galaxies to move away from each other at a corresponding velocity, but that's misleading. In general relativity, you can actually have an increase in space between objects without causing a corresponding increase in the relatives velocities of those objects. CREDITS: Host, Writer, Animator, Editor: Greg Kestin From the producers of PBS NOVA © WGBH Educational Foundation Funding provided by FQXi Special thanks: Marissa Giustina Nick Hutzler Julie Elksy Byron Drury Jacob Barandes Tyler Howe Lissy Herman Ari Daniel Lauren Aguirre Kristine Allington Allison Eck Anna Rotschild MEDIA CREDITS: Music provided by APM: Deep_Science_No-perc Mysteries_of_Science_B Dreaming_of_the_Stars_a Curiosity_Kills_the_Cat_2 Conundrum_a Images: Stars - Rene Barrios Earth - Eirika galaxy spiral (by coornio - diviantart) Squirrel with scissors - 60811670 - Dollarphotoclub Equations - 91613623 - Dollarphotoclub Maxresdefault - Sean Stewart Marissa Giustina - Lammerhuber Tangled cat - David Swayze Cat doll - Vicky Somma Stock footage: train-exits-tunnel - Pond5 Bin_pulsar_442 - Courtesy of Nasa Expanding in space (40294) - Courtesy of Nasa WMAP_archive - Courtesy of Nasa
Views: 1956735 What The Physics?!
Why Is The Speed Of Light The Speed Of Light? | Answers With Joe
You may be familiar with the speed of light, but the reason it exists and how we discovered it is pretty fascinating. Support me on Patreon! http://www.patreon.com/answerswithjoe Follow me at all my places! Instagram: https://instagram.com/answerswithjoe Snapchat: https://www.snapchat.com/add/answerswithjoe Facebook: http://www.facebook.com/answerswithjoe Twitter: https://www.twitter.com/answerswithjoe ============= LINKS LINKS LINKS: PBS Space Time videos: The Speed of Light is NOT About Light https://www.youtube.com/watch?v=msVuCEs8Ydo The Geometry of Causality https://youtu.be/1YFrISfN7jo http://www.iflscience.com/space/solar-system-speed-light/ https://en.wikipedia.org/wiki/Speed_of_light https://en.wikipedia.org/wiki/Lene_Hau https://aeon.co/essays/why-is-the-speed-of-light-the-speed-of-light https://www.sciencenews.org/article/speed-light-not-so-constant-after-all ============ Transcript: So when we talk about the speed of light, the first thing to remember is that light is just a sliver of the entire electromagnetic spectrum, ranging from gamma rays to radio waves. So we’re really talking about the speed of electromagnetism. James Clerk Maxwell was the genius who first described the properties of electromagnetism into physics equations. From these equations, we can calculate the speed of light. 299,792 kilometers per second. Einstein was able to prove through his theory of special relativity that the closer you get to the speed of light, the more time slows down for a person in that relative frame. And if you were to go the speed of light, time would stop altogether. So if you were able to travel faster than light through spacetime, time itself would actually flip. Time would go backwards. And that would break causality. Effect would precede cause, which is impossible. The speed of light is the speed of causality. The other prediction that supports a speed limit is the idea that inertia increases as velocity approaches the speed of light. That means mass increases. So mass is a speed impediment. Nothing that has mass can go the speed of light. But if you are massless, you can only go the speed of light, because you have no speed impediments. And photons are massless particles. Particles that must travel at the speed of light and because they are traveling at the speed of light, time stands still from its point of view. So really, that video I talked about earlier is all wrong, from the perspective of the photon, that journey would have occurred instantly. So when you look at a star at night, that massless photon might have traveled a million light-years to reach you, but its experience was instantaneous. Now there is another theory that’s a little controversial but starting to gain some ground. It says that the speed of light is actually caused by quantum vacuum fluctuations. See, quantum field theory claims that empty space is actually not empty at all but filled with quantum fluctuations and virtual particles popping in and out of existence. And two different teams of researchers have calculated c using electromagnetic properties of the quantum vacuum, so it could be that the quantum foam of virtual particles and fluctuations may be slowing the speed of light. But what if the speed of light wasn’t the speed of light? What if Galileo was right and the speed is infinite? Then nothing would exist. Because matter is made of energy, it would take infinite energy to create any mass. Time and space wouldn’t exist because all things communicate with each other instantaneously. Cause and effect wouldn’t exist. But if the speed of light were slower, that might be even cooler. Because then we could see all the way back to the big bang. The speed of light, of course, is just one of many constants in the universe, like gravity, the specific charges and masses of the fundamental particles, quantum effects, and the list goes on. A whole handful of very specific constants that if they were just a little bit different, we would never exist.
Views: 414378 Joe Scott
Speed of Light and Sound - Light Travels Faster Than Sound - Sound(Chapter 12): CBSE Class 9 Science
This is just a demo video, for more videos and full syllabus please contact us on 8287971571 or 0261-4890014. Speed of Light faster than sound - Sound (Chapter 12): CBSE Class 9 Science This Video is about the speed of sound and light which is covered in CBSE Class 9 Science. Here we describe the topic as light travels faster than sound from chapter sound. Introduction - Sound A sound is a form of energy like heat energy, light energy, potential energy, and kinetic energy. It causes a sensation of hearing in our ears. Sound cannot be created nor destroyed but can be changed from one form to another. E.g., when we clap, a sound is produced. Here, muscular energy is converted into sound energy. This is in accordance with the law of conservation of energy. Similarly in an electric bell, when connected to electricity starts producing sound. Here, again electrical energy is converted into sound energy. Production of Sound The sound is produced due to the vibration of objects. The motion of materials or objects causes vibration. Vibration is a kind of rapid to and fro motion of an object about a central position. It is also referred to as oscillation. For example, a stretched rubber band when plucked vibrates and produces sound. Propagation of Sound The traveling of sound is called propagation of sound waves. The matter or substance through which sound is transmitted is called a medium. The medium can be solid, liquid or gas. Sound cannot travel in a vacuum. A true vacuum refers to the complete absence of matter. Sound waves can travel only through matter. So, sound needs a physical medium in order to travel anywhere. Wave that requires medium to propagate is called Mechanical Wave. For example - a sound wave. Sound cannot travel in the absence of a medium. The speed of sound is slower than the speed of light, one of the main reason behind this is sound requires medium to travel whereas light can travel in vacuum also. When a thunderstorm is seen in the sky during the rainy season it is observed that light is seen first after that striking sound comes, this is because sound travels slower than light. All the above-mentioned topics are described in an interactive and efficient manner so that the students could easily understand them. For more information please visit - https://www.dronstudy.com/shop/popular/class-ix-chem/ Call us at - 8287971571 or 0261-4890016 Email: [email protected] For more information please refer to below-mentioned links: DronStudy official website: https://www.dronstudy.com Facebook Page: https://www.facebook.com/dronstudy/ Class 9 Science Video Lectures: https://www.youtube.com/playlist?list=PLKb9HOyS0VGSExczP9ZSoQn2ZtHKAf3o0 Class 9 Science Full Course: https://www.dronstudy.com/shop/video-courses/class-9-video-courses/class-ix-science/ DronStudy YouTube Channel: https://www.youtube.com/channel/UCPiuJvuyMVFSwcIdBCTpTyQ #sound #light #class9
Views: 13259 Dronstudy.com
Can we Travel Faster than Light? | #aumsum
Our universe is very big. It consists of numerous galaxies, stars, planets, etc. However, until now, we are able to examine only a few of them. So, in order to cross vast distances and explore distant places, we need to travel very fast. Now, it is observed that nothing can travel faster than the speed of light, which is about 186,282 miles per second. This means light from earth will take only 1.3 seconds to reach the moon. Let's compare this to the Apollo 11 spacecraft that took 75 hours and 56 minutes to just enter the orbit of the moon. So, imagine if we could travel faster than light, then space travel would be so easy. We could time travel and even see our future. However, traveling faster than light is impossible. Do you know why? According to Einstein's theory of relativity, to move an object, we require energy. Now, to make this moving object move faster or speed up, we require even more energy. So, what do you think? How much energy will be required to make an object move at the speed of light? If we again refer to the Einstein's theory of relativity, we can conclude that it will require an infinite amount of energy to make an object move at the speed of light. But, looking at the current situation, neither do we have the necessary resources, nor do we have the technology to produce an infinite amount of energy. Hence, we cannot travel at the speed of light or faster. Moreover, just like a sonic boom is produced by an object traveling faster than sound, similarly, a huge amount of radiation will be produced by an object traveling faster than light. This radiation can lead to serious consequences. Hence, it is impossible to travel faster than the speed of light. Also, don't forget to subscribe to our YouTube channel.
Views: 453434 It's AumSum Time
Answer: What would happen if you could travel faster than the speed of light?
David Gross, Nobel Laureate in Physics 2004, has answered a selection of your video and text questions from YouTube and Facebook, including his explanation of how we detect neutrinos, his thoughts about the LHC and information about what books influenced his career choices. See the playlist of answers: http://www.youtube.com/view_play_list?p=FCA554B31EE0D79F Thanks to everyone for your participation.
Views: 156862 Nobel Prize
What Is The Speed of Dark?
twitter: http://www.twitter.com/tweetsauce instagram: http://www.instagram.com/electricpants facebook: http://www.facebook.com/VsauceGaming SOURCES BELOW: this is the video where I talk about THE SPEED OF PUSH: https://www.youtube.com/watch?v=Do1lm9IevYE Big thanks to Martin Archer for help with this episode: http://www.martinarcher.co.uk/ And thanks to Guy Larsen for his shadow magic: https://twitter.com/guylar music by http://www.YouTube.com/JakeChudnow and http://www.audionetwork.com shadows faster than light: http://math.ucr.edu/home/baez/physics/Relativity/SpeedOfLight/FTL.html#3 http://physics.stackexchange.com/questions/63434/could-the-shadow-move-with-faster-than-light-speed http://www.madsci.org/posts/archives/2000-02/950834634.Ph.q.html making the moon brighter: http://what-if.xkcd.com/13/ sunset and earth’s shadow and belt of venus in single pics: http://apod.nasa.gov/apod/ap131024.html http://apod.nasa.gov/apod/ap100729.html amounts of evening-types in a city: http://weatherspark.com/averages/33125/Honolulu-Hawaii-United-States superluminal scissors: http://math.ucr.edu/home/baez/physics/Relativity/SR/scissors.html http://boards.straightdope.com/sdmb/archive/index.php/t-69757.html wave animations: http://www.ablongman.com/mullin/AnimationPages/FigsI-19&20.html http://www.acs.psu.edu/drussell/Demos/SWR/SWR.html http://resource.isvr.soton.ac.uk/spcg/tutorial/tutorial/Tutorial_files/Web-inter-superp.htm phase velocity vs. group velocity: http://resource.isvr.soton.ac.uk/spcg/tutorial/tutorial/Tutorial_files/Web-further-dispersive.htm faster than light dark patches: http://www.askamathematician.com/2013/02/q-is-darkness-a-wave-the-way-light-is-a-wave-what-is-the-speed-of-dark/ http://www.physicsclassroom.com/class/light/Lesson-3/The-Path-Difference make a light interference pattern at home: http://www.exploratorium.edu/snacks/diffraction/ http://www.instructables.com/id/How-to-perform-Interference-and-Diffranction-at-Ho/ the speed of ignorance: http://www.brainpickings.org/index.php/2012/04/02/stuart-firestein-ignorance-science/ http://philosophicalfallibilism.blogspot.com/2009_03_20_archive.html http://kk.org/thetechnium/2008/10/the-expansion-o/ http://louisecharente.wordpress.com/2013/10/24/the-discovery-of-ignorance/ Dunning-Kruger: http://www.huffingtonpost.com/david-macaray/the-dunningkruger-effect_b_4476166.html http://en.wikipedia.org/wiki/McArthur_Wheeler “animalcules”: http://www.leben.us/index.php/component/content/article/59-volume-3-issue-4/236-antoni-van-leeuwenhoeks-amazing-little-animalcules
Views: 14291621 Vsauce
Time Dilation - Travel at Speed of Light - Special Relativity
From the epic Cosmos by Carl Sagan: http://amzn.to/2jRDNUO (US). For UK: http://amzn.to/2BLX2qQ | Canada: http://amzn.to/2iojDBi | This short video clip shows Carl Sagan explaining the phenomenon of Time Dilation / Relativity. It is a short clip from Carl Sagan's Cosmos: A Personal Voyage. Astronomy Gift Shop: http://www.astronomydvd.com/shop.aspx
Views: 134021 AstronomyCorner
Why is Light the Fastest Thing?
Light is the only thing we've observed to travel at the speed of light, though there are some theoretical particles that do the same... But why does it go so fast? and why can't everything go that fast? Watch to find out. ________________________________ VIDEO ANNOTATIONS E=mc^2 video: http://youtu.be/2jKHM92wbl4 Uncertainty Priciple: http://youtu.be/lsfeh2I0nis Why is Lightning a Thing? http://youtu.be/qNuRuWkELzc ________________________________ COOL LINKS & SOURCES Hyperphysics: http://hyperphysics.phy-astr.gsu.edu/hbase/relativ/releng.html Wikipedia: http://en.wikipedia.org/wiki/Speed_of_light http://en.wikipedia.org/wiki/Kinetic_energy#Relativistic_kinetic_energy_of_rigid_bodies Dramatic Prairie Dog: http://youtu.be/jHjFxJVeCQs ________________________________ SCIENCE ASYLUM STUFF More videos at: http://www.youtube.com/TheScienceAsylum Vlog: http://www.youtube.com/TheNickLucid Facebook: http://www.facebook.com/ScienceAsylum Twitter: @nicklucid http://twitter.com/nicklucid Tumblr: http://nicklucid.tumblr.com/ Google+: http://www.google.com/+Scienceasylum Main Site: http://www.scienceasylum.com/ T-Shirts: http://scienceasylum.spreadshirt.com/ ________________________________ IMAGE CREDITS Logo designed by: Ben Sharef Stock Photos and Clipart - Wikimedia Commons http://commons.wikimedia.org/wiki/Main_Page - Openclipart http://openclipart.org/ - or I made them myself...
Views: 124419 The Science Asylum
Tachyons: Faster Than Light Particles
Bonus Videos, "The Nature of Itself," & "Chemicals of Reality," Premium Videos Available @ http://www.patreon.com/strangemysteries Narrated by Jack Daniel www.jackdanielvo.com It is often said that nothing can travel faster than the speed of light. The universal speed limit is 299,792,458 metres or 300,000 kilometres per second, and due to the rules the flying spaghetti monster imposed upon the universe during its creation, this limit cannot be broken. Or can it? Theoretical physics describes a type of particle which may be able to break the light barrier. It can also reportedly travel through time, it gets faster as it loses energy and it possesses has negative mass. So does this mysterious particle really exist? The "Nature of Itself Trailer" Background Music: Seven Lions, Tritonal, Kill the Noise - Horizon (feat. HALIENE) Released by Enhanced http://enhancedmusic.com/home/ https://soundcloud.com/enhanced https://www.facebook.com/EnhancedMusic Get Horizon Now: https://enhanced.lnk.to/Enhanced349Yo REFERENCES: Ehrlich, Robert. 2015. “Six Observations Consistent with the Electron Neutrino Being a m2=-0.11±0.02eV2 Tachyon.” Astroparticle Physics 66 (June): 11–17. https://doi.org/10.1016/j.astropartphys.2014.12.011. Fried, H. M., and Y. Gabellini. 2016. “The Birth and Death of a Universe.” The European Physical Journal C 76 (12): 709. https://doi.org/10.1140/epjc/s10052-016-4577-8. Grøn, Øyvind, and Sigbjorn Hervik. 2007. Einstein’s General Theory of Relativity: With Modern Applications in Cosmology. Springer Science & Business Media. https://market.android.com/details?id=book-IyJhCHAryuUC. Makukov, Maxim A., Eduard G. Mychelkin, and Vladimir L. Saveliev. 2016. “On Possible Tachyonic State of Neutrino Dark Matter.” International Journal of Modern Physics: Conference Series 41 (January): 1660133. https://doi.org/10.1142/S2010194516601332. Mychelkin, Eduard G., and Maxim A. Makukov. 2017. “Tachyonic Approach to Neutrino Dark Matter.” In The Fourteenth Marcel Grossmann Meeting, 2591–96. WORLD SCIENTIFIC. https://doi.org/10.1142/9789813226609_0311. Recami, E. 2009. “The Tolman-Regge Antitelephone Paradox: Its Solution by Tachyon Mechanics.” Electronic Journal of Theoretical Physics. https://www.researchgate.net/profile/Erasmo_Recami/publication/2077024_The_Tolman-Regge_Antitelephone_Paradox_Its_Solution_by_Tachyon_Mechanics/links/0c1c93028f041d2ec2e910d8/The-Tolman-Regge-Antitelephone-Paradox-Its-Solution-by-Tachyon-Mechanics.pdf. Spencer, Joseph Andrew, and James T. Wheeler. 2008. “The Existence of Time.” arXiv [gr-Qc]. arXiv. http://arxiv.org/abs/0811.0112. Hello Sprint Executives, thanks for reading this.
Views: 852692 Strange Mysteries
Clapping Speed of Sound - A visual way to see sound travel
Participants in a line, clap to a regular beat. Spaced several meters apart and video taped, participants can be seen clapping as sound waves reach them. To show the difference between the speed of sound and that of light, participants are also shown clapping only to a visual cue. All Participants are alumni or staff of the Exploratorium Teacher Institute.
NASA May Have Just Discovered Faster than Light Travel
Nasa may have successfully tested a form of space flight that could carry people to the moon in a few short hours — and eventually let us fly at speeds approaching that of light. Mike's food channel: https://www.youtube.com/user/strictlydumpling Instagram: @mikexingchen Twitter: @mikexingchen Snapchat: @mikeychenx Facebook: https://www.facebook.com/beyondsciencetv?_rdr
Views: 1047006 Beyond Science
Speed of light through different materials
"Nothing can travel faster than the speed of light." "Light always travels at the same speed." Have you heard these statements before? They are often quoted as results of Einstein's theory of relativity. Unfortunately, these statements are somewhat misleading. Let's add a few words to them to clarify. "Nothing can travel faster than the speed of light in a vacuum." "Light in a vacuum always travels at the same speed." Those additional three words in a vacuum are very important. A vacuum is a region with no matter in it. So a vacuum would not contain any dust particles (unlike a vacuum cleaner, which is generally full of dust particles). Light traveling through anything other than a perfect vacuum will scatter off off whatever particles exist, as illustrated below. In vacuum the speed of light is c = 2.99792458 x 108 m/s This vacuum speed of light, c, is what the statements from relativity describe. Whenever light is in a vacuum, its speed has that exact value, no matter who measures it. Even if the vacuum is inside a box in a rocket traveling away from earth, both an astronaut in the rocket and a hypothetical observer on earth will measure the speed of light moving through that box to be exactly c. No one will measure a faster speed. Indeed, c is the ultimate speed limit of the universe. That's not to say that nothing ever travels faster than light. As light travels through different materials, it scatters off of the molecules in the material and is slowed down. For some materials such as water, light will slow down more than electrons will. Thus an electron in water can travel faster than light in water. But nothing ever travels faster than c. The amount by which light slows in a given material is described by the index of refraction, n. The index of refraction of a material is defined by the speed of light in vacuum c divided by the speed of light through the material v: n = c/v The index of refraction of some common materials are given below. material n material n Vacuum 1 Crown Glass 1.52 Air 1.0003 Salt 1.54 Water 1.33 Asphalt 1.635 Ethyl Alcohol 1.36 Heavy Flint Glass 1.65 Fused Quartz 1.4585 Diamond 2.42 Whale Oil 1.460 Lead 2.6 Values of n come from the CRC Handbook of Chemistry and Physics The values of n depend somewhat on wavelength, but the dependence is not significant for most applications you will encounter in this course. Unless you are told otherwise, assume the index of refraction given you is appropriate for the wavelength of light you are considering. Those materials with large indices of refraction are called optically dense media. (A medium is just a fancy word for a type of material.) Materials with indices of refraction closer to one are called optically rare media. Being naturally lazy creatures, we generally drop the word "optical'' and talk about dense and rare materials. Just be careful not to confuse dense and rare in the optical context with mass density! Notice that the index of refraction of air differs from the index of refraction of vacuum by a very small amount. For applications with less than 5 digits of accuracy, the index of refraction of air is the same as that of vacuum, n= 1.000. You will probably not encounter a situation in which the differenc between air and vacuum matters, unless you plan a future in precise optics experimentation. Even though light slows down in matter, it still travels at an amazing speed, even through a dense material such as lead still travels at an amazing speed. (Although light does not travel far through lead before being absorbed, high-energy gamma rays can travel a centimeter or so through lead at the speed calculated here.) Using the definition of n, we can find the speed of light through lead: vlead = c/nlead= (2.99792458 x 108 m/s) /(2.6) = 1.2 x 108 m/s = 2.6 x 108miles per hour Even slowed by lead, light travels at a speed of 260 million miles per hour! That's more than 10,000 times the speed of the orbiting space shuttle. (According to a NASA site, the space shuttle travels 17,322 miles per hour when in orbit.)
Views: 11507 Hey! Its Proved!
Interstellar Travel  - Documentary HD #Advexon
Interstellar Travel Interstellar travel is the term used for hypothetical crewed or uncrewed travel between stars or planetary systems. Interstellar travel will be much more difficult than interplanetary spaceflight; the distances between the planets in the Solar System are less than 30 astronomical units (AU)—whereas the distances between stars are typically hundreds of thousands of AU, and usually expressed in light-years. Because of the vastness of those distances, interstellar travel would require a high percentage of the speed of light; huge travel time, lasting from decades to millennia or longer; or a combination of both. The speeds required for interstellar travel in a human lifetime far exceed what current methods of spacecraft propulsion can provide. Even with a hypothetically perfectly efficient propulsion system, the kinetic energy corresponding to those speeds is enormous by today's standards of energy production. Moreover, collisions by the spacecraft with cosmic dust and gas can produce very dangerous effects both to passengers and the spacecraft itself. A number of strategies have been proposed to deal with these problems, ranging from giant arks that would carry entire societies and ecosystems, to microscopic space probes. Many different spacecraft propulsion systems have been proposed to give spacecraft the required speeds, including nuclear propulsion, beam-powered propulsion, and methods based on speculative physics.
Views: 604781 ADVEXON TV
Carl Sagan: Travel at light speed
Another Carl Sagan video for you! This time about travelling near the speed of light and the theory of relativity. Words of Sagan: "As strange and counterintuitive as it seems, time dilation is a law of nature". From the 8th episode of Carl Sagan's Cosmos, called "Travels in space and time".
Views: 83566 NorthernStarLights
Why does light slow down in water?
There are many mysteries of physics for which you can find explanations online and some of those explanations are wrong. In this video, Fermilab’s Dr. Don Lincoln takes on the mystery of why light travels slower in water and glass. He lists a few wrong explanations and then shows you the real reason this happens.
Views: 381109 Fermilab
Why Speed of Light is Constant Urdu Hindi
Adeel explains Michelson Morley experiment which proved light travels with constant speed.
Views: 36067 Takhti
How Fast Is Gravity? Einstein's Predictions for the Speed of Gravity
How long would it take for the gravitational well created by the Sun to disappear, and the Earth and the rest of the planets fly off into space? Support us at: http://www.patreon.com/universetoday More stories at: http://www.universetoday.com/ Follow us on Twitter: @universetoday Follow us on Tumblr: http://universetoday.tumblr.com/ Like us on Facebook: https://www.facebook.com/universetoday Google+ - https://plus.google.com/+universetoday/ Instagram - http://instagram.com/universetoday Team: Fraser Cain - @fcain Jason Harmer - @jasoncharmer Susie Murph - @susiemmurph Brian Koberlein - @briankoberlein Chad Weber - [email protected] Kevin Gill - @kevinmgill Created by: Fraser Cain and Jason Harmer Edited by: Chad Weber Music: Left Spine Down - “X-Ray” https://www.youtube.com/watch?v=4tcoZNrSveE&feature=youtu.be In the very first episode of the Guide to Space, a clean shaven version of me, hunched over in my basement explained how long it takes for light to get from the Sun to the Earth. To answer that question, it takes light about 8 minutes and 20 seconds to make the trip. In other words, if the Sun suddenly disappeared from space itself, we’d still see it shining in the sky for over 8 minutes before the everything went dark. Martians would take about 12 minutes to notice the Sun was gone, and New Horizons which is nearly at Pluto wouldn’t see a change for over 4 hours. Although this idea is a little mind-bending, I’m sure you’ve got your head wrapped around it. We’ve sure gone on about it here on this show. The further you look into space, the further you’re looking back in time because of the speed of light, but have you ever considered the speed of gravity? Let’s go back to that original example and remove the Sun again. How long would it take for the gravitational well created by the Sun to disappear. When would the Earth and the rest of the planets fly off into space without the Sun holding the whole Solar System together with its gravity? Would it happen instantly, or would it take time for the information to reach Earth? It sounds like a simple question, but it’s actually really tough to tell. The force of gravity, compared to other forces in the Universe, is actually pretty weak. It’s practically impossible to test in the laboratory. According to Einstein’s Theory of Relativity, distortions in spacetime caused by mass - also known as gravity - will propagate out at the speed of light. In other words, the light from the Sun and the gravity of the Sun should disappear at exactly the same time from the Earth’s perspective. But that’s just a theory and a bunch of fancy math. Is there any way to test this out in reality? Astronomers have figured a way to deduce this indirectly by watching the interactions with massive objects in space. In the binary system PSR 1913+16, there’s a pair of pulsars orbiting each other within just a few times bigger than the width of the Sun. As they spin around each other, the pulsars warp the spacetime themselves by releasing gravitational waves. And this release of gravitational waves causes the pulsars to slow down. It’s amazing that astronomers can even measure this orbital decay, but the even more amazing part is that they use this process to measure the speed of gravity. When they did the calculations, astronomers determined the speed of gravity to be within 1% of the speed of light - that’s close enough. Scientists have also used careful observations of Jupiter to get at this number. By watching how Jupiter’s gravity warps the light from a background quasar as it passes in front, they were able to determine that the speed of gravity is between 80% and 120% of the speed of light. Again, that’s close enough. So there you go. The speed of gravity equals the speed of light. And should the Sun suddenly disappear, we’ll be glad to get all the bad news at the same time. Gravity is a harsh mistress. Tell us a story about a time gravity was too fast for you. Put it in the comments below. Thanks for watching! Never miss an episode by clicking subscribe. Our Patreon community is the reason these shows happen. We’d like to thank Danny Yarborough, Terrence Branscombe and the rest of the members who support us in making great space and astronomy content. Members get advance access to episodes, extras, contests, and other shenangians with Jay, myself and the rest of the team. Want to get in on the action? Click here.
Views: 51874 Fraser Cain
NASA's Engines and Possible Speed of Light Propulsion?
New propulsion technology is explained and the most advanced the ion engine, which in theory can propel a spacecraft nearing the speed of light.
Hi Everyone, today we’re exploring one of the fundamental characteristics of our Universe - that no particle can be made to travel faster than the speed of light in space. Why is that? TOPICS COVERED IN THIS VIDEO: Why light travels at light speed? - 0:13 What happens when we try to accelerate a particle to the speed of light? - 0:35 What is time dilation? - 0:57 What are Tachyons? - 2:37 What is the causality principle? - 3:16 What are wormholes? - 3:34 How fast does space expand? - 3:56 Quantum entanglement explained | Spooky action at a distance defined - 4:14 --------------------------------------------------------------------------------- BUY MY EDUCATIONAL EBOOKS - https://amzn.to/2T0Zb9W TITLES AVAILABLE String theory made simple Theory of relativity made simple Quantum Mechanics made simple The Fermi paradox --------------------------------------------------------------------------------- CONNECT WITH ME Instagram (see the girl behind the videos) - https://www.instagram.com/londoncitystyle/ --------------------------------------------------------------------------------- SUPPORT ME ON PATREON - https://www.patreon.com/londoncitygirl Even the smallest of amounts will help me create more and more content for YouTube and I’ll be forever grateful! :D --------------------------------------------------------------------------------- SUBSCRIBE TO MY VLOG CHANNEL https://www.youtube.com/channel/UC9FKi7qNrRXP8wbknC6c0BA?sub_confirmation=1 #Physics #TimeDilation #SpeedOfLight
Views: 4819 LondonCityGirl
Is Interstellar Travel Possible? (Time Dilation & The Speed of Light)
Can we travel at light speed? We teamed up with Popular Science to find out! Like this video? Tweet us!: http://twitter.com/thoughtcafe Welcome to Thought Café +, an collaborative animated series with people and organizations we love. Subscribe so you never miss a video! Take a 360° tour of our solar system: https://youtu.be/ZnOTprOTHc8 Our video on pubic hair with AsapScience: https://youtu.be/46LU6AxB1go More Thought Café + videos: http://bit.ly/1KpGB0s Sound Design by Allan Levy Follow us! https://thoughtcafe.ca http://twitter.com/thoughtcafe http://thought-cafe.tumblr.com http://facebook.com/thoughtbubbler http://instagram.com/thoughtcafe @thoughtcafe on Snapchat & Periscope
Views: 186845 Thought Café