Cold water weighs more than hot water.
93
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
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
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
In zero gravity, a candle's flame is round and blue.
16
According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
12
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44