The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
If the chemical sodium is dropped into water it will immediately and violently explode.
67
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Aluminum used to be more valuable than gold!
84
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75