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The AstronomersMost Recent Videos
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Physics / 100 Greatest Discoveries - Documentary [Full Length]

Discovery Channel | Scientists have transformed the way we think and live throughout the centuries. What are the most important scientific discoveries of all time? In no particular order, we present the top 100 in eight different categories.

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Views: 1051 | Comments: 0

 
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Jim Al-Khalili - Quantum Life: How Physics Can Revolutionise Biology

In this Friday Evening Discourse at the Royal Institution, Professor Jim Al-Khalili explores how the mysteries of quantum theory might be observable at the biological level. Although many examples can be found in the scientific literature dating back half a century, there is still no widespread acceptance that quantum mechanics -- that baffling yet powerful theory of the subatomic world -- might play an important role in biological processes. Biology is, at its most basic, chemistry, and chemistry is built on the rules of quantum mechanics in the way atoms and molecules behave and fit together. As Jim explains, biologists have until recently been dismissive of counter-intuitive aspects of the theory and feel it to be unnecessary, preferring their traditional ball-and-stick models of the molecular structures of life. Likewise, physicists have been reluctant to venture into the messy and complex world of the living cell - why should they when they can test their theories far more cleanly in the controlled environment of the physics lab? But now, experimental techniques in biology have become so sophisticated that the time is ripe for testing ideas familiar to quantum physicists. Can quantum phenomena in the subatomic world impact the biological level and be present in living cells or processes - from the way proteins fold or genes mutate and the way plants harness light in photosynthesis to the way some birds navigate using the Earth's magnetic field? All appear to utilise what Jim terms "the weirdness of the quantum world". The discourse explores multiple theories of quantum mechanics, from superposition to quantum tunnelling, and reveals why "the most powerful theory in the whole of science" remains incredibly mysterious. Plus, watch out for a fantastic explanation of the famous double slit experiment. Watch this video on the Ri Channel with additional learning materials: http://bit.ly/X826sE Friday Evening Discourses The tradition of Friday evening discourses at the Royal Institution was started by Michael Faraday in 1825. Since that time most major scientific figures have spoken in the famous Lecture Theatre at the heart of the Ri building at 21 Albemarle Street. Notable talks include Faraday announcing the existence of the technology of photography in 1839 and J.J. Thomson announcing the existence of the fundamental particle later called the electron in 1897. The Ri is on Twitter: http://twitter.com/ri_science and Facebook: http://www.facebook.com/royalinstitution Subscribe for the latest science videos: http://richannel.org/newsletter

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Views: 1002 | Comments: 0

 
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Jim Al-Khalili: Is Time Travel Possible? Determinism, Relativity and the Arrow of Time (2011)

Professor Jim Al-Khalili talks about whether time travel is possible at QED 2011 in Manchester. Music: Milton Mermikides Editor: Mike Hall

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Views: 716 | Comments: 0

 
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Double Slit Experiment explained! by Jim Al-Khalili

"If you can explain this using common sense and logic, do let me know, because there is a Nobel Prize for you.." Professor Jim Al-Khalili explains the experiment that reveals the "central mystery of quantum mechanics" - the double slit experiment. Watch the full lecture here: http://www.youtube.com/watch?v=wwgQVZju1ZM Sometimes called the "two-slit" or "Young's" experiment, it demonstrates that matter and energy can display the characteristics of both waves and particles, establishing the principle known as wave-particle duality. Furthermore, it questions the role of the observer in the outcome of events and demonstrates the fundamental limitation of an observer to predict experimental results. For this reason, Richard Feynman called it "a phenomenon which is impossible ... to explain in any classical way, and which has in it the heart of quantum mechanics. In reality, it contains the only mystery [of quantum mechanics]," (see more at http://en.wikipedia.org/wiki/Double-slit_experiment). The Ri is on Twitter: http://twitter.com/ri_science and Facebook: http://www.facebook.com/royalinstitution Subscribe for the latest science videos: http://richannel.org/newsletter

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Views: 752 | Comments: 0

 
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Jim Al-Khalili and the Quantum Robin

We've known for some time that certain animals can navigate the Earth using it's magnetic fields, but the methods by which they do this have remained largely unknown. However, an emerging field known as quantum biology is shedding light on this area and suggests that nature maybe taking advantage of quantum mechanics to develop its biological compass systems. Physicist Jim Al-Khalili looks at one bird in particular, the European Robin, and how this species of migratory bird may be relying on the strange rules of quantum entanglement to find its way south each year. Watch Jim's Friday Evening Discourse on the subject of Quantum Biology to find out more about the weird intersection between quantum mechanics and biology: http://bit.ly/X826sE The Ri is on Twitter: http://twitter.com/ri_science and Facebook: http://www.facebook.com/royalinstitution Subscribe for the latest science videos: http://richannel.org/newsletter

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Views: 7189 | Comments: 0

 
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Quantum Life: How Physics Can Revolutionise Biology: Jim Al-Khalili at TEDxSalford

Jim Al-Khalili is a professor of physics, author and broadcaster based at the University of Surrey where he holds a chair in the Public Engagement in Science. He is active as a science communicator and has written a number of popular science books, between them translated into over twenty languages. He is a regular presenter of TV science documentaries, including the Bafta nominated Chemistry: A Volatile History, and presents the weekly Radio 4 programme, The Life Scientific. He is a recipient of the Royal Society Michael Faraday medal and the Institute of Physics Kelvin Medal. He has also presented Atom, a three-part series for BBC Four, The Secret Life of Chaos, and Science and Islam, covering the leap in scientific knowledge that took place in the Islamic world between the 8th and 14th centuries. He's also a regular on Radio 4 and on the BBC's Horizon programme. Credits: Camerawork: Nathan Rae & Team - http://nathanrae.co.uk/ Post production: Elliott Wragg - https://twitter.com/EIliott Audio restoration : Jorge Polvorinos - http://jorgepolvorinos.wordpress.com Head of IT and Design: Vlad Victor Jiman - https://twitter.com/VladJiman Intro: Mike Wood - www.completeedits.co.uk https://twitter.com/completeedits

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Views: 801 | Comments: 0

 
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Prof Jim Al-Khalili - Alan Turing: Legacy of a Code Breaker

From cryptanalysis and the cracking of the German Enigma Code during the Second World War to his work on artificial intelligence, Alan Turing was without doubt one of the greatest minds of the 20th century. An extraordinarily gifted mathematician, he is rightly regarded as the father of computer science having set in place the formal rules that govern the way every computer code ever written actually work. This lecture will be a celebration of one man's enigmatic yet ultimately tragic life - a whirlwind tour of his genius, from whether computers can have consciousness to how a leopard gets its spots. Presented by Professor Jim Al-Khalili, Professor of Physics and Professor of Public Engagement in Science from the University of Surrey. Jim Al-Khalili OBE is an Iraqi-born British theoretical physicist, author and science communicator. He is Professor of Theoretical Physics and Chair in the Public Engagement in Science at the University of Surrey. He has become a familiar science personality in the British media. He has hosted several BBC productions about science and is a frequent commentator about science in other British media venues. This was a joint lecture between the Royal Society of Edinburgh and the University of Edinburgh School of Informatics. Recorded on Thursday 10 May 2012 at the George Square Lecture Theatre, The University of Edinburgh. Please note: the excerpts from the BBC documentary have been removed from this version of the lecture video due to copyright issues. You can see the full version of this lecture with the excerpts on our iTunesU channel (www.ed.ac.uk/about/video/itunesu)

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Views: 1237 | Comments: 0

 
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Why quantum mechanics is so mysterious: Professor Jim Al-Khalili

Professor Jim Al-Khalili is one of the most important communicators of theoretical physics in the world today. He gave a talk to the IOP's Physics Communicators Group in London on the mysteries of quantum mechanics and how to explain it to the general public. http://www.iop.org/activity/groups/subject/physcom/index.html

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Views: 2513 | Comments: 0

 
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BBC Horizon Order And Disorder With Jim AI.Khalili EP01

BBC Horizon Order And Disorder With Jim AI.Khalili episode 1 Professor Jim Al-Khalili investigates one of the most important concepts in the world today - information. He discovers how we harnessed the power of symbols, everything from the first alphabet to the electric telegraph through to the modern digital age. But on this journey he learns that information is not just about human communication, it is woven very profoundly into the fabric of reality.

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Views: 4421 | Comments: 0

 
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Order and Disorder - Information

The Story of Information (S01E02) Professor Jim Al-Khalili investigates one of the most important concepts in the world today - information. He discovers how we harnessed the power of symbols, everything from the first alphabet to the electric telegraph through to the modern digital age. But on this journey he learns that information is not just about human communication, it is woven very profoundly into the fabric of reality.

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Views: 940 | Comments: 0

 
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Isaac Asimov - The Foundation Trilogy (a BBC radio adaptation, 1973)

Video is not for profit. [Radio Drama] Each part is time stamped below. Source to audio files/Internet Archive (public domain): http://archive.org/details/IsaacAsimov-TheFoundationTrilogy Foundations, Foundation and Empire, & Second Foundation. PART 1) 0:00 Psychohistory and Encyclopedia: "The opening episode begins on Trantor, capital of the Galactic Empire, with the meeting of Hari Seldon and Hal Dornick, their trial, and their exile to Terminus. The action then jumps forward fifty years, to the first Seldon Crisis, where the repercussions of the recent independence of the Four Kingdoms of the Periphery are being felt on Terminus, and are handled by the first Mayor, Salvor Hardin." PART 2) 1:00:13 The Mayors: "The scene moves forward a further twenty years, as Mayor Hardin faces down the domination of the nearby and most powerful of the Four Kingdoms, Anacreon, whose ruler intends to annex the Foundation by force." PART 3) 1:56:15 The Merchant Princes: "A hundred and fifty years after the Foundation was established, the now powerful trading nation, guided by master trader Hober Mallow, faces its greatest threat to date." PART 4) 2:54:14 The General: "Two hundred years after its creation, the Foundation battles Bel Riose, the last powerful General of the dying Galactic Empire. PART 5) 3:49:47 The Mule: "A further hundred years have passed, and the Foundation is challenged by an unexpected threat named The Mule." PART 6) 4:49:32 Flight From The Mule: "During the war against The Mule, with things going badly for the Foundation, some key figures under the leadership of the Foundation's greatest scientist, Ebling Mis, flee Terminus in search of the Second Foundation, to warn it of the danger from The Mule." PART 7) 5:50:04 The Mule Finds: "The Mule attempts to find and overthrow the Second Foundation." PART 8) 6:50:34 Star's End: "Sixty years later a teenage girl is at the center of the Foundation's renewed search for the Second Foundation." "The premise of the series is that mathematician Hari Seldon spent his life developing a branch of mathematics known as psychohistory, a concept devised by Asimov and his editor John W. Campbell. Using the law of mass action, it can predict the future, but only on a large scale; it is error-prone for anything smaller than a planet or an empire. It works on the principle that the behavior of a mass of people is predictable if the quantity of this mass is very large (equal to the population of the galaxy). The larger the mass, the more predictable is the future. Using these techniques, Seldon foresees the fall of the Galactic Empire, which encompasses the entire Milky Way, and a dark age lasting thirty thousand years before a second great empire arises. To shorten the period of barbarism, he creates two Foundations, small, secluded havens of art, science, and other advanced knowledge, on opposite ends of the galaxy. The focus of the trilogy is on the Foundation of the planet Terminus. The people living there are working on an all-encompassing Encyclopedia, and are unaware of Seldon's real intentions (for if they were, the variables would become too uncontrolled). The Encyclopedia serves to preserve knowledge of the physical sciences after the collapse. The Foundation's location is chosen so that it acts as the focal point for the next empire in another thousand years (rather than the projected thirty thousand)." Links: http://en.wikipedia.org/wiki/The_Foundation_Trilogy_(BBC_Radio) http://en.wikipedia.org/wiki/Foundation_series http://en.wikipedia.org/wiki/Isaac_Asimov

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Views: 880 | Comments: 0

 
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Isaac Asimov How Humanity Can Save The Earth for Humans

Isaac Asimov speaks in 1989 on how humanity can come together and save the planet for future civilization. (This is the complete speech. There are two shorter versions on this channel on youtube. ) Asomov's talk includes insight on climate change, global warming, deforestation, space energy solution, the American Civil War, the Cold War, and more. This science fiction writer here makes this most important prediction of how human's can save civilized life on earth.

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Views: 1059 | Comments: 0

 
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Isaac Asimov - The Last Question

One of Asimov's best-known and most acclaimed short stories. Published in 1956.

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Isaac Asimov's A Feeling of Power

Richard North's Film Version of Isaac Asimov's short story from the Anthology 'Nine Tomorrows'

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Dr Neil DeGrasse Tyson - The Amazing Meeting 6

1:30 Laser Pointer Stand off 16:36 Prayer and Cancer..... 19:50 Swami Levitation..... 24:11 MARS Virus..... 27:00 Fear Of Numbers..... 29:08 Naming Rights..... 38:15 Jury Duty 1..... 41:01 Jury Duty 2 (Cocaine)..... 52:34 Islam's Fall..... 57:10 Religion and Science 1:02:50 Intelligent Design 1:03:30 Stupid Design (classic) 1:05:10 Birth of Atheism 1:07:30 Religion among scientist 1:12:26 Bible in the Classroom 1:15:49 Einstein and God put to rest! Astrophysicist and science communicator Neil deGrasse Tyson presents the keynote address at TAM6. His "brain droppings" cover everything from UFO abductions to 13th floors to jury duty. Dr. Tyson is the host of NOVA scienceNOW on PBS, and has been a frequent guest on The Daily Show and The Colbert Report. His presentation from TAM6 is one of the most entertaining presentations from any Amaz!ng Meeting.

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Isaac Asimov about Overpopulation

"Human dignity cannot survive it. Convenience and decency cannot survive it. As you put more and more people into the world, the value of life not only declines, it disappears. It doesn't matter if someone dies." - Isaac Asimov

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Views: 697 | Comments: 0

 
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2013 Isaac Asimov Memorial Debate: The Existence of Nothing

The concept of nothing is as old as zero itself. How do we grapple with the concept of nothing? From the best laboratory vacuums on Earth to the vacuum of space to what lies beyond, the idea of nothing continues to intrigue professionals and the public alike. Join moderator and Hayden Planetarium Director Neil deGrasse Tyson as he leads a spirited discussion with a group of physicists, philosophers and journalists about the existence of nothing. The event, which was streamed live to the web, took place at the American Museum of Natural History on March 20, 2013. PANELISTS: J. Richard Gott, professor of astrophysical sciences, Princeton University, and author of Sizing Up the Universe: The Cosmos in Perspective Jim Holt, science journalist and author of Why Does the World Exist? An Existential Detective Story Lawrence Krauss, professor of physics, Arizona State University and author of A Universe from Nothing: Why There is Something Rather Than Nothing Charles Seife, professor of journalism, New York University, and author of Zero: The Biography of a Dangerous Idea Eve Silverstein, professor of physics, Stanford University, and co-editor of Strings, Branes and Gravity The late Dr. Isaac Asimov, one of the most prolific and influential authors of our time, was a dear friend and supporter of the American Museum of Natural History. In his memory, the Hayden Planetarium is honored to host the annual Isaac Asimov Memorial Debate — generously endowed by relatives, friends, and admirers of Isaac Asimov and his work — bringing the finest minds in the world to the Museum each year to debate pressing questions on the frontier of scientific discovery. Proceeds from ticket sales of the Isaac Asimov Memorial Debates benefit the scientific and educational programs of the Hayden Planetarium.

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Views: 341 | Comments: 0

 
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2012 Isaac Asimov Memorial Debate: Faster Than the Speed of Light

On Tuesday, March 20, 2012, over 5,000 people tuned in to the live stream of the 2012 Isaac Asimov Memorial Debate from the LeFrak Theater at the American Museum of Natural History. Hosted by Hayden Planetarium Director Neil deGrasse Tyson, this year's debate pitted some of the experimentalists who claimed to have discovered faster-than-light neutrinos against their strongest critics, as well as other teams who are racing to test Albert Einstein's Theory of Relativity with unprecedented precision. To learn more, visit amnh.org.

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Views: 329 | Comments: 0

 
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2011 Isaac Asimov Memorial Debate: The Theory of Everything

Can the entire universe be explained with a single, unifying theory? This is perhaps the most fundamental question in all of science, and it may also be the most controversial. Albert Einstein was among the first to envision a unified theory that could account for the behavior of all matter and energy in the cosmos, but a definitive solution has eluded physicists to this day. As the 21st century progresses, "string theory" remains the leading candidate to be the "theory of everything"—although some have come to question whether string theorists are on the right track. Still others doubt that a "theory of everything" exists at all—and consider the search for such a theory an outdated philosophy of our search for cosmic truths. Join Director of the Hayden Planetarium Neil deGrasse Tyson as he hosts and moderates six of the world's leading voices in this great scientific debate. Panelists: Dr. Katherine Freese, professor of physics at the University of Michigan Dr. Jim Gates, professor of physics at the University of Maryland-College Park Dr. Janna Levin, professor of physics and astronomy at Barnard College Dr. Marcello Gleiser, professor of physics and astronomy at Dartmouth College Dr. Brian Greene, professor of physics and mathematics at Columbia University Dr. Lee Smolin, theoretical physicist at Perimeter Institute for Theoretical Physics The talk was recorded at the American Museum of Natural History on March 7, 2011.

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Views: 400 | Comments: 0

 
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Rose Center Anniversary Isaac Asimov Debate: Is Earth Unique?

Join astrophysicist and Hayden Planetarium Director Neil deGrasse Tyson as he hosts and moderates a panel discussion dedicated to the perennial question "Is Earth Unique?" With what we now know about the stars in our galaxy and the planets that orbit them, we can begin to address this question with informed debate. Panelists are selected for their diverse expertise in geology, biology, chemistry, and physics and for the ways they have applied these fields to address the past, present, and future of planet Earth. This event is a special Asimov Panel Debate in celebration of the Rose Center's 10th Anniversary. For more information, visit http://www.amnh.org

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Views: 352 | Comments: 0

 
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INTERVIEW WITH ISAAC ASIMOV

1975 ARC Identifier 54491 / Local Identifier 306.9415. SY BOURGIN INTERVIEWS ISAAC ASIMOV, BIOCHEMIST AND SCIENCE FICTION WRITER. MR. ASIMOV MAY BE THE MOST WIDELY READ OF ALL SCIENCE FICTION WRITERS, HAVING WRITTEN 155 BOOKS AND HUNDREDS OF MAGAZINE ARTICLES AND SHORT STORIES. A CLIP OF "FANTASTIC VOYAGE," BASED ON HIS BOOK, IS INSERTED IN THE PROGRAM. VIEWERS WILL FIND THIS INTERVIEW PROVOCATIVE IN REGARD TO WHAT MR. ASIMOV HAS TO SAY ABOUT WRITING AND THE FUTURE OF THIS EARTH. U.S. Information Agency. (1982 - 10/01/1999) Made possible by a donation from Public.Resource.Org.

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goddamn particle@2011 Isaac Asimov Memorial Debate

SUBSCRIBE TO ME: http://www.youtube.com/subscription_center?add_user=zencat999 just to prove a point about where the name came from. It was just hard to find and very frustrating. Everyone just called it that godamn particle. When the author wrote the book the original title was "that goddamn particle". The publisher thought otherwise and changed it. probably would have sold better with the original title. And we wouldn't be having this meaningless distractive discussion. for a better discussion check out: 2011 Isaac Asimov Memorial Debate *i do not own this material and will take it down if requested to.* SUBSCRIBE TO ME: http://www.youtube.com/subscription_center?add_user=zencat999

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Views: 458 | Comments: 0

 
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The History of the Beginning

Cosmologist and theoretical physicist Lawrence Krauss takes us on a tour of the early universe—into the tumultuous time just seconds after the Big Bang. Find out what the universe was like back then and how scientists today are studying its cosmological afterglow: The Cosmic Microwave Background Radiation.

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Views: 512 | Comments: 0

 
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Is the universe programmed by strings ?

Are we living in a Matrix ? see the full discussion Dr. Jim Gates talking about the codes inside the equations of the cosmos. check youtube for 2011 Isaac Asimov Memorial Debate: The Theory of Everything

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Views: 570 | Comments: 0

 
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Atheist Revival, Sam Singleton Skepticon 4

Please subscribe. During filming, if a powerpoint slide is just a reiteration of what the speaker is saying, without any new information, I do not cut to it. If you are screaming, "What the fuck is on the projector!"... This is the answer. All Skepticon videos will be monetized this year with ads. 100% of the proceeds with be used to purchase micro-loans through Kiva.org. I know the ads are annoying, but there is no reason to not use the money for a good cause.

Added by: lonewolf

Views: 615 | Comments: 1