German chemists made a replica of a trophy the size of one molecule.
68
A ball of glass will bounce higher than a ball made of rubber.
73
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
A cesium atom in an atomic clock beats over nine billion times a second.
43
Sound at the right vibration can bore holes through a solid object.
134
Iron weighs more after it rusts.
16
A cubic yard of air weighs about 2 pounds at sea level.
31