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
German chemists made a replica of a trophy the size of one molecule.
68
Balsa wood is classified as a hard wood!
41
Research indicates that plants grow healthier when they are stroked.
173
One barrel of petroleum holds 42 gallons.
20
Out of all the senses, smell is most closely linked to memory.
146
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155