Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114
A cesium atom in an atomic clock beats over nine billion times a second.
43
One cubic foot of gold weighs more than 1,200 pounds!
78
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116