robjohn

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	location	West Hills, CA
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216 Reputation

graph time post

30

Jan 21

+30

12:36

3 events

What does this quote about the four dimensional divergence of an antisymmetric tensor mean?

40

Dec 11 '12

+40

17:54

4 events

Blue-shifting as opposed to violet-shifting

10

Sep 23 '12

+10

15:25

upvote

High school double lens optics question

135

May 18 '12

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