Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Balsa wood is classified as a hard wood!
41
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
German chemists made a replica of a trophy the size of one molecule.
68
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
Iron weighs more after it rusts.
68
Neanderthal man had a brain capacity 100cc larger than modern man's.
50