Iron weighs more after it rusts.
68
Pure water (H2O) does not conduct electricity on its own.
46
Billions of neutrinos pass unnoticed through your body every second.
6
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
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
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118