In zero gravity, a candle's flame is round and blue.
16
4.5 pounds of sunlight strike the Earth each day.
27
All Humans Are 99.9% Genetically Identical and 98.4% of human genes are the same as the genes of a chimpanzee.
51
One cubic foot of gold weighs more than 1,200 pounds!
78
Sound at the right vibration can bore holes through a solid object.
134
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118