Thread: Rocky table
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Old 2007-03-21, 13:01   #2
R.D. Silverman
R.D. Silverman's Avatar
Nov 2003

22·5·373 Posts

Originally Posted by davieddy View Post
Since Mally has gone off in a huff, I shall put this teaser to you.

A four legged table typically rocks when placed on an unlevel floor.

However, with two simple assumptions, you can rectify the
problem by rotating the table through an angle <90 degrees.

How come? and what are the assumptions?

I can do better: ONE simple assumption:

The height of the floor at each point is uniformly random. [the interval
does not matter]
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