Ask a scientist and an engineer the following question. Imagine you are on a bus and seated exactly nine feet away beckons a beautiful naked lady.
How many bus stops will it take you to reach the beautiful naked lady if the distance between you is decreased by exactly one-half at each bus stop?
The scientist quickly answered that an infinite number of stops would not permit you to reach the beautiful naked lady because the distance is only decreased by half at each stop.
The engineer answered that after about ten stops you will be close enough for all practical purposes
A mathematician, a physicist, and a chemist were examining the proposition that odd numbers are prime. The mathematician said 1 is prime, 3 is prime, by induction all odd numbers are prime. The physicist said 1 is prime, 3 is prime, 5 is prime, 7 is prime, and he ws satisfied. The chemist did the same thing: ...5 is prime, 7 is prime, 9 is not prime, 11 is prime, 13 is prime. I throw out the one bad observation, 9, and indeed all odd numbers are prime.