Sound travels fifteen times faster through steel than through air.
134
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
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
Nearly 50% of the world's scientists are assigned to military projects.
71
Your brain is 80% water.
525
Most dust particles in your house come from dead skin.
48
Aluminum used to be more valuable than gold!
84
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