Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
If the chemical sodium is dropped into water it will immediately and violently explode.
67
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
One 75-watt bulb gives more light than three 25-watt bulbs.
57