Caffeine boosts memory.
405
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17
Dartboards are made out of horsehairs.
129
The average IQ is 100, while 140 is the beginning of genius IQ.
140
The face of a penny can hold about thirty drops of water.
85
Fine-grained volcanic ash can be found as an ingredient in some toothpastes.
55
In 1976, an underachieving Princeton junior undergraduate wrote a term paper detailing how to make a nuclear bomb. He got an "A", but never got his paper back because it was seized by the FBI.
16