Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Pure water (H2O) does not conduct electricity on its own.
46
During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
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
For every gallon of sea water, you get more than a quarter pound of salt.
45
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
Research indicates that plants grow healthier when they are stroked.
173