Iron weighs more after it rusts.
68
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55