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
Out of all the senses, smell is most closely linked to memory.
146
4.5 pounds of sunlight strike the Earth each day.
27
Sound travels fifteen times faster through steel than through air.
134
Aluminum used to be more valuable than gold!
84
Diamonds can be shattered with a hammer.
-104
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57