Building
a Fence
An engineer,
a physicist and a mathematicians have to build a fence around a flock
of sheep, using as little material as possible.
The engineer forms the flock into a circular shape and constructs a fence
around it.
The physicist builds a fence with an infinite diameter and pulls it together
until it fits around the flock.
The mathematicians thinks for a while, then builds a fence around himself
and defines himself as being outside.
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