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Video Library

Since 2002 Perimeter Institute has been recording seminars, conference talks, and public outreach events using video cameras installed in our lecture theatres.  Perimeter now has 7 formal presentation spaces for its many scientific conferences, seminars, workshops and educational outreach activities, all with advanced audio-visual technical capabilities.  Recordings of events in these areas are all available On-Demand from this Video Library and on Perimeter Institute Recorded Seminar Archive (PIRSA)PIRSA is a permanent, free, searchable, and citable archive of recorded seminars from relevant bodies in physics. This resource has been partially modelled after Cornell University's arXiv.org. 

  

 

Mardi nov 01, 2005
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Highest energy cosmic rays reach {\it macroscopic} energies $> 10^{20}$ eV ($\sim 10$ joules; corresponding linear momentum in one proton is similar to a slapshot hockey puck's). Such protons can either be accelerated by nearby astrophysical sources or be by-products of decay of unknown superheavy fundamental particles. After reviewing phenomenology of cosmic rays, I will discuss a novel {\it non-stochastic} acceleration mechanism in jets of powerful active galactic nuclei. The mystery of ultra high energy cosmic rays is likely soon to be resolved by Pierre Auger observatory.

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Dimanche oct 23, 2005
Speaker(s): 

Artur Ekert, quanta, cipher, computers, secure communication, cryptography, permutations, substitution, quantum, spooky action, entanglement, Schrodinger, quantum theory

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Dimanche oct 23, 2005

Howard Burton, John Stachel, Artur Ekert, Gary Horowitz, unifying, quantum field theory, superstring theory, unification, symmetry of nature, electromagnetism, gravity, Einstein, quantum, many worlds, quantum mechanics, Higgs particle,supersymmetry, quantum computers

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Dimanche oct 23, 2005
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It is well known that Einstein worked to develop a unified field theory that would encompass all of physics including (he hoped) all quantum phenomena. It is not so well known that there was \'another Einstein,\' who from 1916 on was skeptical about the continuum as a foundational element in physics, especially because of the existence of quantum phenomena.

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Samedi oct 22, 2005
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Could the laws of physics change? The laws of physics are usually meant to be set in stone; variability is not usually part of physics. Yet contradicting Einstein\'s tenet of the constancy of the speed of light raises nothing less than that possibility. I will discuss some of the more dramatic implications of a varying speed of light.

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Samedi oct 22, 2005
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Howard Burton, the Executive Director and chief architect of Perimeter Institute, describes the process and pitfalls of constructing a home for budding Einsteins from scratch in Waterloo. Einstein factory, Howard Burton, Perimeter Institute, Einstein, sociological factors, Mike Lazardis, IAS, research, culture, making a difference, government support,

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Lundi oct 17, 2005

The most important scientist of the twentieth century, and its most important artist, went through their periods of greatest creativity almost simultaneously and in remarkably similar circumstances: Einstein\'s special theory of relativity and Picasso\'s Les Demoiselles d\'Avignon. It turns out they were both working on the same problem: the nature of space and time and, more particularly, simultaneity.

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Dimanche oct 16, 2005

Robert Schulmann, Howard Burton, John Dawson, Einstein, moral engagement, Godel, causality, Jewish, anti-Semitism, philosophy, religion, humanitarian,

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Dimanche oct 16, 2005
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Although Einstein emerged as a leading spokesman for pacifism in 1930, his political views already underwent a major shift even before Hitler came to power in January 1933. Disappointment with negotiations at the 1932 Disarmament Conference in Geneva led him to the conclusion that the only hope of averting a major war was the creation of a strong world government.

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