Brass doorknobs automatically disinfect themselves in about 8 hours.
18
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Aluminum used to be more valuable than gold!
84
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
For every gallon of sea water, you get more than a quarter pound of salt.
45
The storage capacity of human brain exceeds 4 Terrabytes.
140
One cubic foot of gold weighs more than 1,200 pounds!
78
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3