# 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.

## Constraining Primordial Magnetism

Tuesday Feb 15, 2011
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Primodial magnetic fields are a potentially interesting origin for cosmic magnetism. Such fields can leave an interesting signal not only in the CMB temperature and polarization, but in structure at low redshift, contributing to the matter power spectrum and SZ effect at small scales. I will talk about the reasons for considering primordial fields, their origin and evolution, and how their observational consequences constrain their nature.

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## Recent results from simulating accretion and jets in strong gravity environments

Tuesday Feb 15, 2011
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## Muon Capture Constraints on Sterile Neutrino Properties

Tuesday Feb 15, 2011
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We show that ordinary and radiative muon capture impose stringent constraints on sterile neutrino properties. In particular, we consider a sterile neutrino with a mass between $40$ and $80~{\rm MeV}$ that has a large mixing with the muon neutrino and decays predominantly into a photon and light neutrinos due to a large transition magnetic moment. Such a model was suggested as a possible resolution to the puzzle presented by the results of the LSND, KARMEN, and MiniBooNE experiments.

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## Beyond the Standard Model - Lecture 2

Tuesday Feb 15, 2011

## Big Bang Nucleosynthesis as a probe of new physics

Tuesday Feb 15, 2011
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## A New View of the Cosmic Microwave Background with ACT

Tuesday Feb 15, 2011
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Over the coming decade, tiny fluctuations in temperature and polarization of the Cosmic Microwave Background (CMB) will be mapped with unprecedented resolution. The Planck Surveyor, the Atacama Cosmology Telescope (ACT), and the South Pole Telescope (SPT) are already making great advances. In a few years, high resolution polarization experiments, such as PolarBear, ACTPol, and SPTPol will be in full swing.

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## String Theory Review - Lecture 2

Tuesday Feb 15, 2011
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## Quantum Information Review - Lecture 2

Tuesday Feb 15, 2011
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## Beyond the Standard Model - Lecture 1

Monday Feb 14, 2011

## String Theory Review - Lecture 1

Monday Feb 14, 2011
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## Next Public Lecture

Check back for details on the next lecture in Perimeter's Public Lectures Series

## RECENT PUBLIC LECTURE

### Janna Levin: Black Hole Blues and Other Songs from Outer Space

Speaker: Janna Levin