Join my mailing list https://briankeating.com/list to win a real 4 billion year old meteorite! All .edu emails in the USA ?? will WIN! Nothing can move faster than the speed of light, right? Wrong! Today on The Impossible, we'll explore extraordinary scenarios where sound outpaces light from underwater sound propagation to groundbreaking experiments with extremely cold sodium atoms where physicists successfully slowed light to a mere 38 miles per hour. These fascinating phenomena push the boundaries of our knowledge and challenge our conventional understanding of physics. Key Takeaways: 00:00 Can sound outpace light? 00:49 Various materials, various speeds 01:42 Sound propagation underwater 02:42 Harvard's experiment on slowing light 04:09 Outro Additional resources: ➡️ Follow me on your fav platforms: ✖️ Twitter: https://twitter.com/DrBrianKeating ? YouTube: https://www.youtube.com/DrBrianKeating?sub_confirmation=1 ? Join my mailing list: https://briankeating.com/list ✍️ Check out my blog: https://briankeating.com/cosmic-musings/ ?️ Follow my podcast: https://briankeating.com/podcast Into the Impossible with Brian Keating is a podcast dedicated to all those who want to explore the universe within and beyond the known. Make sure to subscribe so you never miss an episode! #intotheimpossible #briankeating #speedoflight ... https://www.youtube.com/watch?v=jr7MZdaOmmI

Join my mailing list here ? https://briankeating.com/list to get access to an EXCLUSIVE Q&A with Brian Greene! Is it still possible to make a case for string theory? And should we treat the multiverse as a serious idea and explore it mathematically? Here to discuss these fundamental questions with me today is the one and only Brian Greene. Brian Greene, of course, needs no introduction. He is an American theoretical physicist and mathematician. He’s a professor at Columbia University and the director of Columbia’s Center for Theoretical Physics. Greene has gained a lot of popularity through his books that bring complex physical issues closer to general audiences: The Elegant Universe (1999), Icarus at the Edge of Time (2008), The Fabric of the Cosmos (2004), and The Hidden Reality (2011), a book he promoted in the TV show The Big Bang Theory! In this episode, Brian and I discuss the experimental relevance of string theory, the multiverse hypothesis, the likelihood of alien life, and much more. Tune in! Join this channel to get access to perks: https://www.youtube.com/channel/UCmXH_moPhfkqCk6S3b9RWuw/join Key Takeaways: Intro (00:00) What’s the experimental minimum? (00:51) String theory’s experimental relevance (08:20) An alternative path to Einstein’s equations (20:02) Are we neglecting some ideas? (25:20) Calabi-Yau manifolds in string theory (36:40) Lorentz invariance and signals that are faster than the speed of light (42:27) The multiverse and its implications for science (1:00:00) Inflation doesn’t resolve all questions (1:04:32) The role of a scientist as an educator (1:17:19) UFO sightings and the likelihood of alien life (1:29:58) Outro (1:40:40) — Additional resources: ?‍? Check out AppSumo's Black Friday offers: http://appsumo.8odi.net/BRIAN ➡️ Check out Brian Greene: ? The Hidden Reality by Brian Greene: https://a.co/d/3LUjEA2 ? Website: https://www.briangreene.org/ ✖️ Twitter: https://twitter.com/bgreene ? Watch my most popular videos: Neil Turok https://www.youtube.com/watch?v=Dt5cFLN65fI Frank Wilczek https://youtu.be/3z8RqKMQHe0?sub_confirmation=1 ➡️ Follow me on your fav platforms: ✖️ Twitter: https://twitter.com/DrBrianKeating ? YouTube: https://www.youtube.com/DrBrianKeating?sub_confirmation=1 ? Join my mailing list: https://briankeating.com/mailing_list ✍️ Check out my blog: https://briankeating.com/blog.php ?️ Follow my podcast: https://briankeating.com/podcast Into the Impossible with Brian Keating is a podcast dedicated to all those who want to explore the universe within and beyond the known. Make sure to subscribe so you never miss an episode! #intotheimpossible #briankeating #briangreene ... https://www.youtube.com/watch?v=qpsxH7mOopM

#neutrons #bigbang #losalamos Poor neutrons — they don’t even get 15 minutes of fame! Physicists at Los Alamos National Lab trapped Ultracold Neutrons in a bottle to see how long they live! Free Neutrons Are Breaking Records and Confusing Physicists! Why do Neutrons live for exactly 14.629 minutes when in isolation, but forever when they are bound in an atomic nucleus? That is a mystery as old as time, but a good fact for us -- if neutrons did not decay, we wouldn't be here! Scientists have discovered the exact length of time a neutron will survive before it decays into a proton, an electron, and an anti-neutrino. This confirms the Standard Model of physics which predicts how often neutrons decay. We have known for years that a lonely neutron will die in about 15 minutes dating back to the original measurement of a free neutron’s decay in 1951. The new experiment, called UCNtau (for "Ultra Cold Neutrons tau", where tau refers to the neutron lifetime), has revealed that the neutron lives 14.629 minutes with an uncertainty of 0.005 minutes. This is a factor of two more precise than previous measurements. While the results do not solve the mystery of why free neutrons live as long as they do, they bring scientists closer to answering this question which has been around since the birth of the universe. A new measurement— using 38 million neutrons -- the result of years of experimentation in the UNCtau apparatus at the Los Alamos Neutron Science Center—is the most precise EVER. The team’s results were published last year in Physical Review Letters: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.127.162501 So do neutrons need to take their vitamins to live longer? 5:00 neutrinos should be neutrons obviously ? ? Watch my most popular videos:? Weinstein and Wolfram https://www.youtube.com/watch?v=OI0AZ4Y4Ip4?sub_confirmation=1 Sheldon Glashow: https://youtu.be/a0_iaWgxQtA?sub_confirmation=1 Neil deGrasse Tyson https://youtu.be/1kxgK6J4S5Y Michio Kaku: https://youtu.be/3to9ymn-XKI Sir Roger Penrose: https://youtu.be/AMuqyAvX7Wo Noam Chomsky: https://youtu.be/Iaz6JIxDh6Y?sub_confirmation=1 Sabine Hossenfelder: https://youtu.be/sh98cwRkzAA Stephen Wolfram: https://youtu.be/nSAemRxzmXM Avi Loeb: https://youtu.be/N9lUceHsLRw Jim Simons: https://youtu.be/6fr8XOtbPqM Be my friend: ?‍♂️ Twitter: https://twitter.com/DrBrianKeating ? Subscribe https://www.youtube.com/DrBrianKeating?sub_confirmation=1 ? Join my mailing list; just click here http://briankeating.com/mailing_list.php ✍️ Detailed Blog posts here: https://briankeating.com/blog.php ?️ Listen on audio-only platforms: https://briankeating.com/podcast.php A production of http://imagination.ucsd.edu/ Support the podcast: https://www.patr ... https://www.youtube.com/watch?v=JxACiyMratI

? Win a copy of Avi Loeb's INTERSTELLAR! ? https://kingsumo.com/g/fs8pxh/win-a-copy-of-avi-loebs-hit-book-interstellar Is Andrew Huberman @hubermanlab being unfairly punished for what he said about Robert F. Kennedy Jr.? Will he experience further backlash after this? Should scientists avoid politics at all costs? Check out this clip from my recent appearance on the Joe Rogan Experience to hear our takes, and let us know what you think in the comments! — ? Watch my most popular videos? Neil Turok https://www.youtube.com/watch?v=Dt5cFLN65fI Frank Wilczek https://youtu.be/3z8RqKMQHe0?sub_confirmation=1 Eric Weinstein vs. Stephen Wolfram https://www.youtube.com/watch?v=OI0AZ4Y4Ip4?sub_confirmation=1 Sir Roger Penrose: https://youtu.be/AMuqyAvX7Wo Sabine Hossenfelder: https://youtu.be/g00ilS6tBvs Avi Loeb: https://youtu.be/N9lUceHsLRw Follow me on your fav platforms: ✖️ Twitter: https://twitter.com/DrBrianKeating ? YouTube: https://www.youtube.com/DrBrianKeating?sub_confirmation=1 ? Join my mailing list: https://briankeating.com/mailing_list ✍️ Check out my blog: https://briankeating.com/blog.php ?️ Follow my podcast: https://briankeating.com/podcast — Into the Impossible with Brian Keating is a podcast dedicated to all those who want to explore the universe within and beyond the known. Make sure to subscribe so you never miss an episode! #intotheimpossible #briankeating #joerogan ... https://www.youtube.com/watch?v=ob1GWqZZHaw