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... “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: https://www.youtube.com/watch?v=IM630... https://www.youtube.com/watch?v=NnMIh... light slowing down in glass: https://www.youtube.com/watch?v=FAivt... a different perspective from Sixty Symbols about light slowing down: https://www.youtube.com/watch?v=CiHN0... 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: 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

▶️ DTube
▶️ IPFS