Sign in to confirm you’re not a bot
This helps protect our community. Learn more

Would Headlights Work at Light Speed?

Vsauce
24.1M subscribers
<__slot-el>
<__slot-el>
9.6M views 10 years ago
If you were driving at the speed of light and turned on your headlights, what would happen? Twitter:   / tweetsauce   Instagram:   / electricpants   Sources and extras below!! Thanks to Jude for asking me this question on twitter!   / 550865272895447041   “The Life of the Cosmos” by Lee Smolin: http://www.amazon.co.uk/The-Life-Cosm... “In Search of the Multiverse” by John Gribbin: http://www.amazon.co.uk/In-Search-Mul... “The Pig That Wants to be Eaten: by Julian Baggini: http://www.amazon.co.uk/The-Pig-That-... Relevant MinutePhysics videos:    • Common Physics Misconceptions      • E=mc² is Incomplete   light slowing down in glass:    • The Speed of Light in Glass   a different perspective from Sixty Symbols about light slowing down:    • Why is light slower in glass? - Sixty...   Why is “c” the speed of light? http://math.ucr.edu/home/baez/physics... Car at light speed: http://www.sydneyobservatory.com.au/2... https://van.physics.illi …...more
...more
Would Headlights Work at Light Speed?
256KLikes
9,697,031Views
2015Feb 25
If you were driving at the speed of light and turned on your headlights, what would happen? Twitter:   / tweetsauce   Instagram:   / electricpants   Sources and extras below!! Thanks to Jude for asking me this question on twitter!   / 550865272895447041   “The Life of the Cosmos” by Lee Smolin: http://www.amazon.co.uk/The-Life-Cosm... “In Search of the Multiverse” by John Gribbin: http://www.amazon.co.uk/In-Search-Mul... “The Pig That Wants to be Eaten: by Julian Baggini: http://www.amazon.co.uk/The-Pig-That-... Relevant MinutePhysics videos:    • Common Physics Misconceptions      • E=mc² is Incomplete   light slowing down in glass:    • The Speed of Light in Glass   a different perspective from Sixty Symbols about light slowing down:    • Why is light slower in glass? - Sixty...   Why is “c” the speed of light? http://math.ucr.edu/home/baez/physics... Car at light speed: http://www.sydneyobservatory.com.au/2... https://van.physics.illinois.edu/qa/l... http://www.scienceforums.net/topic/82... http://www.desy.de/user/projects/Phys... Light speed is the same in all inertial frames of reference: http://www.physlink.com/Education/Ask... https://van.physics.illinois.edu/qa/l... http://hyperphysics.phy-astr.gsu.edu/... Relativistic addition of velocities: http://demonstrations.wolfram.com/Ein... http://cnx.org/contents/e3a41220-af3f... doppler shift: http://commons.wikimedia.org/wiki/Fil... Relativity: http://www.refsmmat.com/jsphys/relati... http://www.astro.virginia.edu/~jh8h/F... Light speed and catching-up to light. http://www.pitt.edu/~jdnorton/Goodies... http://math.ucr.edu/home/baez/physics... http://www.askamathematician.com/2010... http://scienceline.ucsb.edu/getkey.ph... https://van.physics.illinois.edu/qa/l... Other good relativity resources: http://newt.phys.unsw.edu.au/einstein... Light echo footage: http://www.spacetelescope.org/videos/... “fine-tuned” universe: http://io9.com/5989467/how-does-the-a... http://en.wikipedia.org/wiki/Fine-tun... http://rationalwiki.org/wiki/Anthropi... Irrational numbers: http://mathworld.wolfram.com/Irration... a million digits of pi: http://www.piday.org/million/ THERE'S MORE VSAUCE!! Vsauce2:    / vsauce2   Vsauce3:    / vsauce3   animated drawings by Guy Larsen   / guylar   rocketship animation by Eric Langay   / ericlanglay  

Follow along using the transcript.

Vsauce

24.1M subscribers