Forget what you think you know about dark matter. After a 30-year search for a single, as yet unidentified, species of dark matter particle that would make up some 25% of the mass of the universe, physicists are starting to consider novel explanations. Some envision invisible matter hiding within the folds of extra spatial dimensions. Others suggest not one kind of dark matter particle, but numerous species inhabiting a shadow universe. Others still conjecture that dark matter doesn’t exist, and instead propose that the laws of gravity need modification. We’ll bring together leading thinkers on dark matter—the revolutionary and conventional alike—for a distinctly unconventional discussion on the dark universe.

This program is part of the Big Ideas Series, made possible with support from the John Templeton Foundation.

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Original Program Date: June 2, 2016
MODERATOR: John Hockenberry
PARTICIPANTS: Katherine Freese, Justin Khoury, Stacy McGaugh, Neal Weiner, Lisa Randall

The discovery of Dark Matter 00:00

John Hockenberry introduction 3:50

Participant Introductions 8:10

What is dark matter? 9:59

Lets talk about WIMPs 15:15

How do we detect dark matter? 17:45

The standard model looks incomplete 28:46

So you want to take apart Newton and Einstein? 37:49

What role did dark matter play in the early universe? 48:00

Can dark matter be a super fluid? 55:15

Will we understand dark matter better if we know about its origins? 1:02:28

What is the headline for the next big dark matter discovery? 1:07:46

The multiverse hypothesis, suggesting that our universe is but one of perhaps infinitely many, speaks to the very nature of reality. Join physicist Brian Greene, cosmologists Alan Guth and Andrei Linde, and philosopher Nick Bostrom as they discuss and debate this controversial implication of forefront research and explore its potential for redefining the cosmic order. Moderated by Robert Krulwich and featuring an original musical interlude, inspired by parallel worlds, by DJ Spooky.

This program is part of the Big Ideas Series, made possible with support from the John Templeton Foundation.

The World Science Festival gathers great minds in science and the arts to produce live and digital content that allows a broad general audience to engage with scientific discoveries. Our mission is to cultivate a general public informed by science, inspired by its wonder, convinced of its value, and prepared to engage with its implications for the future.
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Visit our Website: http://www.worldsciencefestival.com/
Like us on Facebook: https://www.facebook.com/worldsciencefestival
Follow us on twitter: https://twitter.com/WorldSciFest

Original Program Date: June 13, 2009
MODERATOR: Robert Krulwich
PARTICIPANTS: Alan Guth, Brian Greene, Andrei Linde, Paul D. Miller, Nick Bostrom

Introduction with Brian Greene 00:00

Musical interlude 25:15

Participant Introductions 33:49

How do we know there was a Big Bang 35:50

How do we get from a single universe to a multiverse. 47:14

Is the universe expanding and how fast? 01:00:25

What does six dimensional space look like? 01:08:00

How do we know there is a multiverse? 01:13:48

Bryce DeWitt on the multiverse concept 01:24:40

What if we assume the universe is the simulation hypothesis? 01:37:14

This program is part of The Big Idea Series, made possible with support from the John Templeton Foundation.

An Invisible Threat: The Relationship Between Microwave Technology and Health | ENDEVR Documentary

We cannot see the waves, we cannot hear them, we cannot touch them, but they are all around us, invading the air, irradiating our body and the environment. An Invisible Threat looks at the relationship between microwave technology and health, investigating the conflicts of interest among industry representatives, politicians, scientists and consumers that leave us unprotected to the effects of radiation. Wireless networks irradiate microwaves indiscriminately across cities, villages and the countryside of all developed countries. This increasing exposure disturbs the biological processes that are essential for the healthy growth of human beings, animals and plants – it especially affects children and teenagers.
Our investigation delves into three groups: the telecommunications industry (mobile telephone companies, MMF); official organisations (WHO, IARC, ICNIRP) and official scientific reports (BioInitiative, Interphone, CEFALO).
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ENDEVR explains the world we live in through high-class documentaries, special investigations, explainers videos and animations. We cover topics related to business, economics, geopolitics, social issues and everything in between that we think are interesting.

This is a slide presentation by Prof. Ampim in a series of radio broadcasts on the ancient Kushite civilization, based on his extensive primary research in northeast Africa over the past 30 years.
Part 2 of 4
www.AdvancingTheResearch.org
www.ManuAmpim.com

According to our best theories of physics, the fundamental building blocks of matter are not particles, but continuous fluid-like substances known as 'quantum fields'. David Tong explains what we know about these fields, and how they fit into our understanding of the Universe.
Watch the Q&A here: https://youtu.be/QUMeKDlgKmk
Subscribe for regular science videos: http://bit.ly/RiSubscRibe

David Tong is a professor of theoretical physics at Cambridge University, specialising in quantum field theory.

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Not everything that is true can be proven. This discovery transformed infinity, changed the course of a world war and led to the modern computer. This video is sponsored by Brilliant. The first 200 people to sign up via https://brilliant.org/veritasium get 20% off a yearly subscription.

Special thanks to Prof. Asaf Karagila for consultation on set theory and specific rewrites, to Prof. Alex Kontorovich for reviews of earlier drafts, Prof. Toby ‘Qubit’ Cubitt for the help with the spectral gap, to Henry Reich for the helpful feedback and comments on the video.

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References:

Dunham, W. (2013, July). A Note on the Origin of the Twin Prime Conjecture. In Notices of the International Congress of Chinese Mathematicians (Vol. 1, No. 1, pp. 63-65). International Press of Boston. — https://ve42.co/Dunham2013

Conway, J. (1970). The game of life. Scientific American, 223(4), 4. — https://ve42.co/Conway1970

Churchill, A., Biderman, S., Herrick, A. (2019). Magic: The Gathering is Turing Complete. ArXiv. — https://ve42.co/Churchill2019

Gaifman, H. (2006). Naming and Diagonalization, from Cantor to Godel to Kleene. Logic Journal of the IGPL, 14(5), 709-728. — https://ve42.co/Gaifman2006

Lénárt, I. (2010). Gauss, Bolyai, Lobachevsky–in General Education?(Hyperbolic Geometry as Part of the Mathematics Curriculum). In Proceedings of Bridges 2010: Mathematics, Music, Art, Architecture, Culture (pp. 223-230). Tessellations Publishing. — https://ve42.co/Lnrt2010

Attribution of Poincare’s quote, The Mathematical Intelligencer, vol. 13, no. 1, Winter 1991. — https://ve42.co/Poincare

Irvine, A. D., & Deutsch, H. (1995). Russell’s paradox. — https://ve42.co/Irvine1995

Gödel, K. (1992). On formally undecidable propositions of Principia Mathematica and related systems. Courier Corporation. — https://ve42.co/Godel1931

Russell, B., & Whitehead, A. (1973). Principia Mathematica [PM], vol I, 1910, vol. II, 1912, vol III, 1913, vol. I, 1925, vol II & III, 1927, Paperback Edition to* 56. Cambridge UP. — https://ve42.co/Russel1910

Gödel, K. (1986). Kurt Gödel: Collected Works: Volume I: Publications 1929-1936 (Vol. 1). Oxford University Press, USA. — https://ve42.co/Godel1986

Cubitt, T. S., Perez-Garcia, D., & Wolf, M. M. (2015). Undecidability of the spectral gap. Nature, 528(7581), 207-211. — https://ve42.co/Cubitt2015

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Special thanks to Patreon supporters: Paul Peijzel, Crated Comments, Anna, Mac Malkawi, Michael Schneider, Oleksii Leonov, Jim Osmun, Tyson McDowell, Ludovic Robillard, Jim buckmaster, fanime96, Juan Benet, Ruslan Khroma, Robert Blum, Richard Sundvall, Lee Redden, Vincent, Marinus Kuivenhoven, Alfred Wallace, Arjun Chakroborty, Joar Wandborg, Clayton Greenwell, Pindex, Michael Krugman, Cy 'kkm' K'Nelson, Sam Lutfi, Ron Neal

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Written by Derek Muller, Adam Becker and Jonny Hyman
Animation by Fabio Albertelli, Jakub Misiek, Iván Tello and Jonny Hyman
Math City Animation by Another Angle 3D Visuals (www.anotherangle.ee)
Filmed by Derek Muller and Raquel Nuno
Edited by Derek Muller
Music and SFX by Jonny Hyman Additional Music from Epidemic Sound
Additional video supplied by Getty Images
Thumbnail by Geoff Barrett
Associate Producers: Petr Lebedev and Emily Zhang

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