A cubic yard of air weighs about 2 pounds at sea level.
31
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
The force of a suction cup is calculated using F=AP.
15
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Out of all the senses, smell is most closely linked to memory.
146