The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
One 75-watt bulb gives more light than three 25-watt bulbs.
57
Scientists are now able to grow 'beating' heart tissue in a lab!
162
Aluminum used to be more valuable than gold!
84
Iron weighs more after it rusts.
16
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Pure water (H2O) does not conduct electricity on its own.
46