Cold water weighs more than hot water.
93
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
A cubic yard of air weighs about 2 pounds at sea level.
31
Nylon is made from coal and petroleum.
42
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118