Nylon is made from coal and petroleum.
42
According to studies, men change their minds two to three times more often than women.
72
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
A ball of glass will bounce higher than a ball made of rubber.
73
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
The sun is 330,330 times larger than the earth.
75
One barrel of petroleum holds 42 gallons.
20
The earth is approx. 6,588,000,000,000,000,000 tons.
175