The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
Aluminum used to be more valuable than gold!
84
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
For every gallon of sea water, you get more than a quarter pound of salt.
45
Balsa wood is classified as a hard wood!
41
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
The force of a suction cup is calculated using F=AP.
15