AST201 Lecture 1 Tuesday.docx
AST201 Lecture 1 Tuesday.docx

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School
University of Toronto St. George
Department
Astronomy & Astrophysics
Course
AST201H1
Professor
Michael Reid
Semester
Winter

Description
AST201 Lecture 1 Tuesday, January 7, 2014 Fritz Zwicky -in the 30s looked at all the galaxies and tried to figure out how they were moving in space -if you know how big they are you can figure out how fast they are moving -realized they were moving much faster than his predictions -most of the mass of the galaxies we were seen was actually invisible -the black stuff we see -people thought that his ‘missing mass’ idea was crazy Vera Rubin -one of the fi
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