Dept. of To Much Time
Estimating the unladen swallow
This is the proof that g33ks don't have a life. This guy have used his mathematic skills, his productive (?) time and his creativity to estimate the airspeed velocity of an Unladen Swallow. With a brain like this you surely won't be bored.
Just that you don't have to read his strangely but well-done site the answer is: an unladen European Swallow is roughly 11 meters per second, or 24 miles an hour. I will propably never forget.