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Nobel Prize Winner Sir Roger Penrose: Hawking Points in the CMB Sky
#NobelPrize #SirRogerPenrose
Sir Roger Penrose on his latest research and provide an insight into the thinking of a modern day theoretical physicist. Is the Universe destined to collapse, ending in a big crunch or to expand indefinitely until it homogenizes in a heat death? Roger will explain a third alternative, the cosmological conformal cyclic cosmology (CCC) scheme—where the Universe evolves through eons, each ending in the decay of mass and beginning again with new Big Bang. The equations governing the crossover from each aeon to the next demand the creation of a dominant new scalar material, postulated to be dark matter. In order that this material does not build up from aeon to aeon, it is taken to decay away completely over the history of each aeon. The dark matter particles (erebons) may be expected to behave almost as classical particles, though with bosonic properties; they would probably be of about a Planck mass, and interacting only gravitationally. Their decay would produce gravitational signals, and be responsible for the approximately scale invariant temperature fluctuations in the CMB of the succeeding aeon. In our own aeon, erebon decay might well show up in signals discernable by gravitational wave detectors. The talk will blend Roger’s accessible style with an unapologetic detailed look at the physical principles. It should be of interest to practicing physicists and lay people who enjoy taking a more detailed look at physics.
Sir Roger Penrose, Emeritus Professor at the Mathematical Institute of the University of Oxford, winner of the Copley Medal and the Wolf Prize in Physics, which he shared with Stephen Hawking, has made profound contributions encompassing geometry, black hole singularities, the unification of quantum mechanics and general relativity, the structure of space-time, nature of consciousness and the origin of our Universe. His geometric creations, developed with his father Lionel, inspired the works of MC Escher, and the Penrose Steps have been featured in several movies. His tilings adorn many public buildings, including the Oxford Mathematics Institute and will soon decorate the San Francisco Transit Terminal. Their fivefold symmetry, which was initially thought impossible or a mathematical curiosity, has now been found in nature. In 1989 Penrose wrote The Emperor’s New Mind which challenged the premise that consciousness is computation and proposed new physics to understand it.
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https://www.youtube.com/watch?v=zt1WH_SkazQ
Sir Roger Penrose on his latest research and provide an insight into the thinking of a modern day theoretical physicist. Is the Universe destined to collapse, ending in a big crunch or to expand indefinitely until it homogenizes in a heat death? Roger will explain a third alternative, the cosmological conformal cyclic cosmology (CCC) scheme—where the Universe evolves through eons, each ending in the decay of mass and beginning again with new Big Bang. The equations governing the crossover from each aeon to the next demand the creation of a dominant new scalar material, postulated to be dark matter. In order that this material does not build up from aeon to aeon, it is taken to decay away completely over the history of each aeon. The dark matter particles (erebons) may be expected to behave almost as classical particles, though with bosonic properties; they would probably be of about a Planck mass, and interacting only gravitationally. Their decay would produce gravitational signals, and be responsible for the approximately scale invariant temperature fluctuations in the CMB of the succeeding aeon. In our own aeon, erebon decay might well show up in signals discernable by gravitational wave detectors. The talk will blend Roger’s accessible style with an unapologetic detailed look at the physical principles. It should be of interest to practicing physicists and lay people who enjoy taking a more detailed look at physics.
Sir Roger Penrose, Emeritus Professor at the Mathematical Institute of the University of Oxford, winner of the Copley Medal and the Wolf Prize in Physics, which he shared with Stephen Hawking, has made profound contributions encompassing geometry, black hole singularities, the unification of quantum mechanics and general relativity, the structure of space-time, nature of consciousness and the origin of our Universe. His geometric creations, developed with his father Lionel, inspired the works of MC Escher, and the Penrose Steps have been featured in several movies. His tilings adorn many public buildings, including the Oxford Mathematics Institute and will soon decorate the San Francisco Transit Terminal. Their fivefold symmetry, which was initially thought impossible or a mathematical curiosity, has now been found in nature. In 1989 Penrose wrote The Emperor’s New Mind which challenged the premise that consciousness is computation and proposed new physics to understand it.
...
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dan-hooper-discusses-at-the-edge-of-time
#cosmology #particlephysics #bigbang
Dan Hooper is a senior scientist and the head of the Theoretical Astrophysics Group at the Fermi National Accelerator Laboratory (Fermilab). He is also Associate Professor of Astronomy and Astrophysics at the University of Chicago ( https://astro.uchicago.edu/people/dan-hooper.php ). Dr. Hooper received his Ph.D. in Physics from the University of Wisconsin–Madison. He was later a postdoctoral researcher at the University of Oxford and the David Schramm Fellow at Fermilab.
Dr. Hooper’s research focuses on the interface between particle physics and cosmology, covering topics such as dark matter, dark energy, supersymmetry, neutrinos, extra dimensions, and ultra-high-energy cosmic rays. He has authored more than 200 articles in peer-reviewed scientific journals, and he has given an even larger number of technical talks at scientific conferences and university seminars and colloquia.
Dr. Hooper is the author of three books written for nonscientists: Dark Cosmos: In Search of Our Universe's Missing Mass and Energy, Nature's Blueprint: Supersymmetry and the Search for a Unified Theory of Matter and Force, and At the Edge of Time: Exploring the Mysteries of Our Universe’s First Seconds ( https://www.amazon.com/Dan-Hooper/e/B001ITYTFO?ref=sr_ntt_srch_lnk_1&qid=1574710782&sr=8-1 ).
He has also written for popular magazines such as Astronomy, Sky & Telescope, and New Scientist. He gives many public lectures and is frequently called on by the media to comment on science news. Dr. Hooper’s television appearances include Through the Wormhole with Morgan Freeman and Space’s Deepest Secrets, and he has been interviewed on NPR’s Science Friday.
Professor Hooper also teaches through The Great Courses: https://www.thegreatcourses.com/professors/dan-hooper/
As the new field of astro-particle physics rapidly develops, we are witnessing an exciting time in the history of science. In addition to the progress being made in the traditional areas of experimental particle physics (accelerator experiments), exciting developments are also taking place in the use of astrophysical experiments to study elementary particles. The most striking example of this success is the measurement of the neutrino masses and mixing angles that have been made over the last decade. Many of the questions asked by particle physicists are difficult to address with collider experiments and are being explored ever increasingly by astrophysicists. These efforts include the development of particle dark matter searches, ultra-high energy cosmic rays detectors, gamma-ray telescopes and high-energy neutrino telescopes. Professor Hooper's research is focused primarily, although not entirely, on studying and exploring particle physics beyond the Standard M
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PAUL
paul-steinhardt-on-why-we-need-to
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Many argue that there is a big difference between theoretical physics in the 20th and 21st century. They claim that there have been no new theoretical developments in physics since the mid-70s. I asked the legendary physicist Paul Steinhardt what he thought of these claims and what he would like to see ambitious theoretical physicists doing today. Enjoy!
If you liked this clip, check out our full interview here: https://www.youtube.com/watch?v=wUN2j-Cjryk
Paul J. Steinhardt is the Albert Einstein Professor of Science at Princeton University. His pioneering work has significantly impacted our understanding of the universe’s early moments and its fundamental constituents. Throughout his career, Steinhardt made significant contributions to theoretical cosmology, condensed matter physics, and the study of quasicrystals. He is arguably best known for developing the inflationary model of the early expansion of the Universe, a groundbreaking theory that explains the uniformity of the Universe on large scales. He also challenged conventional cosmological paradigms with his work on the cyclic model of the Universe, proposing a cyclic theory of cosmic evolution in which universes are endlessly born, expand, contract, and rebound.
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FIGHT
fighter-pilot's-stealth-secrets!-hasard
#F35 #StealthFighter #HasardLee
"Being able to regulate your emotions, regulate your stress, your self-talk is really important. The Air Force has moved to this human performance aspect -- all pilots, as soon as they show up, they start this sports psychology training that we've adapted to flying fighters and that carries with them throughout their career." — Hasard Lee
In his first book, The Art of Clear Thinking, veteran USAF F-35 Stealth Fighter Pilot Hasard Lee distills what he’s learned during his career flying some of the Air Force’s most advanced aircraft. With gripping firsthand accounts from his time as a fighter pilot and fascinating turning points throughout history. As a fighter pilot, Hasard believes that his primary task is good decision-making, and he believes that with the amplification of technology, that skill is more important than ever before. In the book, Hasard reveals powerful decision-making principles that can be used in business and in life.
Hasard spent his career flying both the F-16 and F-35. In 2016, he was selected as the 'Top Instructor Pilot of the Year' for the Air Force's largest F-16 Combat Wing. In 2017, he returned from Afghanistan where his squadron dropped the most ordnance since the opening days of the war. He's flown 82 combat missions and has 4 Air Medals.
Hasard has the distinction of being the only fighter pilot to ever employ two different types of jets in combat on the same day.
Hasard has one of the largest defense channels on YouTube with over 100 million views find him @HasardLee
Transcript and additional resources here: https://app.castmagic.io/share/9f2615b9-d1ef-449f-b93f-df3dd3abf884
00:00:00 Major Hasard Lee and Lt. Commander Ariel Klainerman
00:02:24 Judging the book by its cover
00:05:35 What are the commonalities between Navy and Air Force fighter pilots?
00:07:51 How much do you depend on raw physical reflexes vs. mental training?
00:10:50 What is your training routine and how do you counter/prevent G-LOC?
00:16:00 The OODA Loop theory of decision-making vs. ACE (assess. choose, execute)
00:20:30 What is the future of education and training in aviation and at large?
00:25:00 Joint Terminal Attack Controller (JTAC) training
00:26:30 What are the commonalities between boxing and dog fighting?
00:31:30 How do you view automated systems and AI? What do you teach your students about it?
00:39:57 How do you train people to deal with non-linear, power law situations?
00:43:37 What was your process for writing this, your first book?
00:48:00 How do you decide when to choose?
00:50:25 What is the tunnel vision and how do you overcome it?
00:55:08 What can an elite fighter pilot teach that applies to everyday life?
00:57:50 Fighter pilot myth-busting
00:59:45 Which enemy aircraft do you FEAR the most?
01:00:20 Would you fly with an AI-piloted wingman?
01:02:47 What aircraft would be in your dream hanger?
01:05:00 Have you had any unexplained encounters?
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#universe #podcast #briankeating #intotheimpossible #science #astronomy #cosmology #cosmicmicrowavebackground
#Afghanistan, #Instagram, #podcast, #book #deal, writing, revision, #fighter #pilots, G-forces, human performance, #nutrition, hydration, sleep, decision-making theory, nonlinear, heuristics, F 35, AI, sports psychology, #stress management, autopilot, emergency, Hazard Lee, astronaut, writing process, cockpit.
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the-truth-about-science-popularizers-joe
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In this clip from The Joe Rogan Experience, Joe Rogan and I expose the truth about science popularizers and pop science! Enjoy.
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sean-carroll’s-biggest-ideas
#MindScape #SeanCarroll #physics
Sean Carroll joins me to discuss his magnificent new book, The Biggest Ideas In the Universe. Sean is an American theoretical physicist and philosopher who specializes in quantum mechanics, gravity, and cosmology. He is the Homewood Professor of Natural Philosophy at Johns Hopkins University in Baltimore. He has been a contributor to the physics blog Cosmic Variance, and has published in scientific journals such as Nature as well as other publications, including The New York Times, Sky & Telescope and New Scientist. He is known for atheism, critique of theism and defense of naturalism.
He has appeared on the History Channel's The Universe, Science Channel's Through the Wormhole with Morgan Freeman, Closer to Truth (broadcast on PBS), and Comedy Central's The Colbert Report. Carroll is the author of Spacetime And Geometry, a graduate-level textbook in general relativity, and has also recorded lectures for The Great Courses on cosmology, the physics of time and the Higgs boson.
He is also the author of four other popular books: From Eternity to Here about the arrow of time, The Particle at the End of the Universe about the Higgs boson, The Big Picture: On the Origins of Life, Meaning, and the Universe Itself about ontology, and Something Deeply Hidden about the foundations of quantum mechanics. He began a podcast in 2018 called Mindscape, in which he interviews other experts and intellectuals coming from a variety of disciplines, including "[s]cience, society, philosophy, culture, arts and ideas" in general.He has also published a Youtube video series entitled "The Biggest Ideas in the Universe" which provides physics instruction at a popular-science level but with equations and a mathematical basis, rather than mere analogy. The series has become the basis of a new book series with the installment, "The Biggest Ideas in the Universe: Space, Time, and Motion".
00:00:00 Intro
00:04:07 On the tension between philosophy and science and Sean’s book “The Big Picture”
00:07:31 Judging Sean’s book by its cover and the story of The Biggest Ideas in the Universe: Space, Time, and Motion, book series.
00:16:11 Becoming a professional physicist versus other professions?
00:21:15 Sean Carroll's Mindscape Big Picture Scholarship ( https://bold.org/scholarships/mindscape/ )
00:24:14 On the academic “hunger games” and becoming a professor. Is higher education becoming a luxury? Is it obsolete?
00:32:14 What role can AI play in the future of education?
00:34:10 The role of Einstienian gravity and the equivalence principle in The Biggest Ideas.
00:42:00 How do you know your doing a good job of interviewing?
00:45:17 Can a computer feel and/or think?
00:50:00 Can consciousness be effected by gravity? Is there a quantum foundation to consciousness a la Penrose/Hammeroff’s orchestrated reduction?
00:53:51 Have you experimented with psychedelics?
00:58:20 Imaginary numbers and their role in physics. How do classical and quantum mechanics go together?
01:00:00 What do you think of the potential of JWST?
01:03:30 What are you views on the probability of SETI/Alien life?
01:08:10 Maya Beneowitz asks why assume a finite dimensional Hilbert space referring to Sean’s talk on extracting the universe from the wave function ( https://youtu.be/GqOs7OSabdA ).
01:16:00 About branch thickness and the many worlds hypothesis. The wave function squared.
01:18:34 Fantastic Four teaser
https://www.preposterousuniverse.com/
https://twitter.com/seanmcarroll
Mindscape Podcast on Apple
https://bold.org/scholarships/mindscape/
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bruce-partridge-on-social-pressure-in
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