In zero gravity, a candle's flame is round and blue.
16
German chemists made a replica of a trophy the size of one molecule.
68
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
According to studies, men change their minds two to three times more often than women.
72
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
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
For every gallon of sea water, you get more than a quarter pound of salt.
45
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199