Re: Aaahhh... I can't believe this

In article <Tt2dnQMObbEzB2DYnZ2dnUVZ_vGinZ2d@xxxxxxxxxxx>,
Mark Nudelman <markn@xxxxxxxxxxxxxxxxxxxxx> wrote:

Two metal rails, each one mile long, are laid end-to-end making a 2-mile
long rail. The free end of each rail is staked to the ground, but the
joint where the rails *** against each other is free to move. Each
rail expands by one inch due to thermal expansion, but remains straight
and in contact with the other rail, thus causing the joint to rise above
the ground. How high does the joint rise?

Just seeing the words "high" and "joint" in the same sentence
brought back memories....

--
Gerry Myerson (gerry@xxxxxxxxxxxxxxx) (i -> u for email)
.

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