#darkmatter #neutrinos #bigbang The ghost particle, the Neutrino, is a hero of the cosmos, helping matter and energy get transported through the cosmos. There is not one, but at least 3 types, or 'flavors', of neutrinos. Physicists have calculated how many of each type of neutrino should be detected from various sources such as the sun, the earth, nuclear reactors, and the birth of the universe! But some say there should be another, so-called 'sterile' neutrino, present, both at the Big Bang, and even today. As discussed in my recent video "Fermilab Didn’t Find Sterile Neutrinos. What Comes Next?" https://youtu.be/WzTpSgJEFMQ , it could be that these missing neutrinos are some of what makes up the 70% of the Universe that has been called dark. Flavors of neutrinos may account for all or much of dark matter. But, as this video suggests, we should not overlook the importance of deeply studying the three neutrinos we KNOW for certain exists! First postulated by the legendary, acerbically humorous, Wolfgang Pauli to fix a physics energy accounting problem, Pauli lost his bet of a case of champagne that neutrinos would never be detected when, it was, in 1956, by Fred Reines and George Cowan. Waler Baade won the champagne, but Reines and Cowan shared a Nobel Prize. Neutrinos are actually a type of dark matter. They have all the hallmarks of dark matter -- they have mass, weakly interact with matter, and don't give off or absorb any light. In fact, they are the only form of dark matter we KNOW exists. Neutrinos have such a small mass and high energy that they move through the universe at nearly the speed of light. For this reason, they are known as hot dark matter. But other scientists, like Sabine Hossenfelder say other candidates, such as Superfluid Dark Matter are more promising https://youtu.be/sh98cwRkzAA. What do you think? Is dark matter more likely to be caused by new physics, old particles, or something completely unexpected? Leave a comment below! ? Watch my most popular videos:? @Lex Fridman Lex Fridman This Is Why Elon Musk Should Fund Astronomy! https://youtu.be/xOPMPqMnwaM?sub_confirmation=1 Sabine Hossenfelder: https://youtu.be/sh98cwRkzAA?sub_confirmation=1 Physics Beyond the Standard Model A New Contender is Here! https://www.youtube.com/watch?v=-6A6myur--c Frank Wilczek https://youtu.be/3z8RqKMQHe0?sub_confirmation=1 Eric Weinstein and Stephen 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 Jill Tarter https://youtu.be/O9K9OBd3vHk?sub_confirmation=1 Sara Seager Venus LIfe: https://youtu.be/QPsEDoOT ... https://www.youtube.com/watch?v=BNp_em6wMnw

Watch the full interview: https://youtu.be/1FAFABmXuBg?sub_confirmation=1 ?‍♂️ Find Brian Keating on Twitter at https://twitter.com/DrBrianKeating ? Find Brian Keating on Instagram at https://instagram.com/DrBrianKeating ? Buy Brian's book LOSING THE NOBEL PRIZE: http://amzn.to/2sa5UpA ? Subscribe for more great content https://www.youtube.com/DrBrianKeating?sub_confirmation=1 ✍️Detailed Blog posts here: https://briankeating.com/blog.php ?Join my mailing list: http://briankeating.com/mailing_list.php ?Join my Facebook Group: https://facebook.com/losingthenobelprize ?️Please subscribe, rate, and review the INTO THE IMPOSSIBLE Podcast on iTunes: https://itunes.apple.com/us/podcast/into-the-impossible/id1169885840?mt=2 A production of http://imagination.ucsd.edu/ ... https://www.youtube.com/watch?v=jMVBuidI4Rk

#StringTheory #Supersymmetry #CumrunVafa Join me in welcoming Prof. Cumrun Vafa (Harvard) in his first major podcast interview! We discussed a wide range of topics including what message he'd put into a billion-year time capsule. Plus, we discuss his delightful new book. Beneath all of the complex and formidable mathematical structures that formulate physical laws rest simple but deep nuggets of truth. It is these simple truths, and not the complicated technical details, that scientists strive for when uncovering the laws of nature. Fortunately, these core ideas can often be illustrated with simple mathematical puzzles. These puzzles are so simplified that one can tackle them and appreciate their meaning without using any complicated math. This book includes over a hundred puzzles and their solutions, along with a discussion about how they relate to deep ideas in physics and math. Examples are drawn from classical physics, such as Newton's laws and Einstein's theory of relativity, as well as from modern physics, including black holes and string theory. This book is designed for the general public, and it does not require an extensive background in mathematics or physics--just a sense of curiosity! For more information about the author see his website: https://www.cumrunvafa.org/ . Get the book here: https://amzn.to/3mSFGA1 00:00:00 Introduction 00:01:39 The story behind the title and book cover 00:03:55 What is a puzzle versus a mystery? 00:05:48 What puzzles are you most fascinated by? 00:06:26 Black hole entropy 00:07:56 Albert Michelson 00:08:31 Godel's Theorem: Are some puzzles not solvable? 00:10:39 Aristarchos of Samos 00:11:21 Galileo and the Dialogo 00:12:24 Why string theory? 00:17:25 Dimensional Analysis 00:21:35 Singularities 00:28:51 ADS and 5 Dimensions 00:31:08 string theory 00:35:09 Supersymmetry 00:40:42 On Religion 00:53:05 A scorecard for Physics 00:57:30 What would your "ethical will" be? 00:58:30 What would you put on monoliths that would last a billion years? 01:03:10 What have you accomplished that once seemed impossible? Professor Vafa is world-renowned for his groundbreaking work in string theory and the mathematical technology needed to explore this field. He is one of the founders of the duality revolution in string theory which has reshaped our understanding of the fundamental laws of the universe. He has uncovered mysteries of black holes using topological aspects of string theory and is the founder of `F-theory’ which is one of the most promising directions in connecting string theory solutions known as the `string landscape’ to particle physics. His ideas related to apparently consistent, but ultimately inconsistent, theories of quantum gravity which he initiated in the `swampland’ project has helped narrow dow ... https://www.youtube.com/watch?v=yppqz12ngbM

➡️ Watch the full episode: https://youtu.be/hJrkZi7jz5o — Additional resources: ➡️ Check out DemystifySci: ? Website: https://demystifysci.com/ ✖️ Twitter: https://twitter.com/demystifysci ➡️ 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 #demystifysci -~-~~-~~~-~~-~- Please watch: ""I understand Quantum Mechanics after this discovery!" Stephen Wolfram" https://www.youtube.com/watch?v=c-RO3vM10Ok -~-~~-~~~-~~-~- ... https://www.youtube.com/watch?v=liNdi2voW8M