A single speck of dust is half way in size between a subatomic particle and the Earth.
15
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
A cesium atom in an atomic clock beats over nine billion times a second.
43
If the chemical sodium is dropped into water it will immediately and violently explode.
67