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PI Day

Like Pi? Here’s a collection of things you might not know about this mysterious mathematical constant.

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In celebration of the International Year of Light, Perimeter Institute presents 20 fascinating factoids about photons.

/Jan 28, 2015

Get your fill of pi (videos) to celebrate Pi Day, including great short videos from Hank Green, James Grime, Veritasium and Physics Girl, Matt Parker, and (of course) Perimeter Institute.

/Mar 14, 2017

To commemorate what would have been Carl Sagan’s 80th birthday, Perimeter Institute celebrates one of science’s greatest advocates.

/Nov 09, 2014