Physics 101- Introduction to Mechanics
January 16






  Okay, so prove taht the earth is sphereical AND devise a way to compute the earth's radius.  You shouldn't need a NASA satellite to do this only simple equipment such as rulers, and stopwatchs.

Let's consider a evening at the beach.  What happens at sunset?  Would your friend sitting on the balcony of his beachfront apartment (10 stories up), see the sunset at the same time as you (while on the beach)? 


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Jeff Phillips
Loyola Marymount University
Spring 2002