A cubic yard of air weighs about 2 pounds at sea level.
31
Aluminum used to be more valuable than gold!
84
One third of the electricity produced on earth is used to power electric light bulbs!
75
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
One 75-watt bulb gives more light than three 25-watt bulbs.
57
Each day, up to 150 species of life become extinct.
-23
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9