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We've all wondered at some point whether time travel is actually possible like it is in the movies. Second Thought is here to find out! Time Dilation Calculator: http://www.emc2-explained.info/Dilation-Calc/#.WLIVUjsrKUk Sources and Further Reading: http://authors.library.caltech.edu/3737/ http://www.fourmilab.ch/cship/timedial.html http://www.hawking.org.uk/space-and-time-warps.html http://adsabs.harvard.edu/abs/2006FoPhL..19..259N http://physics.aps.org/story/v15/st11 https://www.researchgate.net/publication/260930585_ACS_Surgery_Principles_and_Practice_critical_care http://cshperspectives.cshlp.org/content/4/6/a005751.full.pdf Much of the research on paradoxes was compiled by one of my very helpful volunteers: Alan Le! Music: https://www.youtube.com/watch?v=zaLTikHtuHw Follow Second Thought on Social Media! Twitter: https://twitter.com/_SecondThought Facebook: https://www.facebook.com/secondthoughtchannel/ Join the official Discord server! https://discord.gg/5FTJz3W Support Second Thought on Patreon! https://www.patreon.com/secondthought
http://www.ted.com First, Keith Barry shows us how our brains can fool our bodies -- in a trick that works via podcast too. Then he involves the audience in some jaw-dropping (and even a bit dangerous) feats of brain magic. Get TED Talks recommended just for you! Learn more at https://www.ted.com/signup. The TED Talks channel features the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes (or less). Look for talks on Technology, Entertainment and Design -- plus science, business, global issues, the arts and more. Follow TED on Twitter: http://www.twitter.com/TEDTalks Like TED on Facebook: https://www.facebook.com/TED Subscribe to our channel: https://www.youtube.com/TED
A short documentary by SuperNova Films. If available, watching it in HD with headphones is greatly appreciated. All audio and video clips used in the documentary are named in the credits at the end. Thanks a lot for your time and support. If you want to support and help me grow this channel by more videos like this, you can donate to: https://www.paypal.me/MazenShams or email me @ email@example.com to get in contact. If you are inspired by the video, don't hesitate to Like and Share it with others.
These 10 objects will keep your brain wondering! Some of the coolest inventions we could find that defy the laws of physics! Like us on Facebook: https://www.facebook.com/TopTrending Follow us on Twitter: https://twitter.com/TopTrending Commentator: http://www.youtube.com/user/BaerTaffy 10 Objects Invented Just to Defy Physics
The double slit experiment radically changed the way we understand reality. To check out any of the lectures available from The Great Courses Plus go to http://ow.ly/QVaz302duhX and get ready to learn about everything from cooking to calculus. Get your own Space Time tshirt at http://bit.ly/1QlzoBi 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 double slit experiment radically changed the way we understand reality. Find out what the ramifications of this experiment were and how we can use it to better comprehend our universe. Written and hosted by Matt O’Dowd Made by Kornhaber Brown (www.kornhaberbrown.com) Previous Episode https://www.youtube.com/watch?v=eJ2RNBAFLj0 The Planck Length and the Origin of Quantum Mechanics https://www.youtube.com/watch?v=tQSbms5MDvY Veritasium and the Double Slit Experiment https://www.youtube.com/watch?v=GzbKb59my3U Is Quantum Tunneling Faster than Light? https://www.youtube.com/watch?v=-IfmgyXs7z8 Comments by: Jason Blank https://www.youtube.com/watch?v=_NqbRcwWwPw&lc=z13mhf0rcurtybftb23nf3yalruqvx2dm Deisisase https://www.youtube.com/watch?v=_NqbRcwWwPw&lc=z13uifuzxlr3xvc1022ly1jo4uijfjhgj04 Bike Jake https://www.youtube.com/watch?v=_NqbRcwWwPw&lc=z13mcnhbglncgpbc122wgxsabw31xdvqw04 An Imposter https://www.youtube.com/watch?v=_NqbRcwWwPw&lc=z12hyl5z4lvsjdihn04cgbhbsnnivhbgdqw0k
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