Aluminum used to be more valuable than gold!
84
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
The earth is approx. 6,588,000,000,000,000,000 tons.
175
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
16
Hot water can freeze faster than cold water.
181
The sun is 330,330 times larger than the earth.
75