At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
The storage capacity of human brain exceeds 4 Terrabytes.
140
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Sound at the right vibration can bore holes through a solid object.
134
Pure water (H2O) does not conduct electricity on its own.
46
Sound travels about 4 times faster in water than in air.
408