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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

Displaying all lectures given by: George Johnson


PIRSA:06050003  ( MP4 Medium Res , MP3 , PDF ) Which Format?
The Search for Miss Leavitt
Speaker(s): George Johnson
Abstract: Inside Harvard College Observatory in 1904, a young woman named Henrietta Swan Leavitt sat hunched over a stack of glass photographic plates, patiently counting stars. The images had been taken by a telescope high in the Peruvian Andes, and Miss Leavitt was given the tedious chore of measuring the b... read more
Date: 03/05/2006 - 7:00 pm
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