A physicist and a mathematician are sitting in a faculty
lounge. Suddenly, the coffee machine catches on fire. The physicist grabs
a bucket and leap towards the sink, filled the bucket with water and puts
out the fire. Second day, the same two sit in the same lounge. Again, the
coffee machine catches on fire. This time, the mathematician stands up,
got a bucket, hands the bucket to the physicist, thus reducing the problem
to a previously solved one.
= free = members only