Brass doorknobs automatically disinfect themselves in about 8 hours.
18
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
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
Scientists in Germany have developed a candy that doesn't cause cavities.
11
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
One ragweed plant can release as many as one billion grains of pollen!
51