A 'jiffy' is an actual unit of time for 1/100th of a second!
66
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
Sound travels fifteen times faster through steel than through air.
134
A cesium atom in an atomic clock beats over nine billion times a second.
43
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75