The force of a suction cup is calculated using F=AP.
15
Pumice is the only rock that floats on water.
14
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
A cubic yard of air weighs about 2 pounds at sea level.
31
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
Termites are being researched as a possible renewable energy source as they can produce up to 2 litres of hydrogen from ingesting a single sheet of paper, making them one of the planet’s most efficient bioreactors.
24
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116