Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
The force of a suction cup is calculated using F=AP.
15
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
The average home creates more pollution than does the average car.
33
There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13