The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
Hot water can freeze faster than cold water.
181
One cubic foot of gold weighs more than 1,200 pounds!
78
The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
5
Out of all the senses, smell is most closely linked to memory.
146
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75