0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
Liquid TIDE laundry detergent glows under a blacklight.
96
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
The bark of an older redwood tree is fireproof.
65
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
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
Iron weighs more after it rusts.
68