Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
Sound travels about 4 times faster in water than in air.
408
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
Diamonds can be shattered with a hammer.
-104
Research indicates that plants grow healthier when they are stroked.
173
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Iron weighs more after it rusts.
16