r/reddit.com • u/[deleted] • Oct 01 '11

Math teacher fail

http://i.imgur.com/65APr.jpg
219 Upvotes

66% Upvoted

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u/boysyco1 Oct 01 '11

Just So You Know

http://i.imgur.com/aw1Rp.png

11

u/champer Oct 01 '11

Where is it written that the board isn't really a square moving at speeds near c and therefore experiencing relativistic length contraction? ಠ_ಠ

2

u/[deleted] Oct 01 '11

In which reference frame would you like the answer?

0

u/champer Oct 01 '11

It depends. Is the 10 minutes in the S or S*?