Sound travels fifteen times faster through steel than through air.
134
The earth is approx. 6,588,000,000,000,000,000 tons.
175
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
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
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
The idea of left brain (logical) and right brain (creative) has no basis in neuroscience and is in fact a myth.
16
Hot water can freeze faster than cold water.
181