PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE
 | PIRSA:11070087
( Flash Presentation , Windows Presentation , Windows Video File , MP3 , PDF) Which Format?
The Dark Side of the Universe Speaker(s): Neta Bahcall
Abstract: What is the Universe made of? Recent observations suggest surprising results: not only most of the matter in the Universe is dark and unconventional but, more surprisingly, the major component of the Universe may be in the form of 'dark energy' -- a form of energy that opposes the pull of gravity an... read more
Date: 21/07/2011 - 4:20 pm
Collection: Women in Physics Canada
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 | PIRSA:09060066
( Flash Presentation , Windows Presentation , Windows Video File , MP3 , PDF) Which Format?
Weighing the Universe Speaker(s): Neta Bahcall
Abstract: How do we weigh the Universe? Where is the Dark Matter? I will discuss these questions and show that several independent methods, including the observed present-day abundance of rich clusters , the evolution of cluster abundance with redshift, the baryon-fraction in clusters, the observed Mass-to-Li... read more
Date: 24/06/2009 - 2:00 pm
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 | PIRSA:09040052
( Flash Presentation , Windows Presentation , Windows Video File , MP3 , PDF) Which Format?
The Shape of Clusters and Large-Scale Structure Speaker(s): Neta Bahcall
Abstract: The largest structures in the Universe -- Superclusters of Galaxies -- range in size from a few Mpc to the 'Great Walls' scale of hundreds of Mpc. What is the shape of these large structures -- are they filamentary in nature or are they flattened two-dimensional 'pancakes'? How do they form and evol... read more
Date: 30/04/2009 - 9:00 am
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