One ragweed plant can release as many as one billion grains of pollen!
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The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Galalith is a type of plastic that can be made from milk. It is odourless, insoluble in water, biodegradable, anti-allergenic, antistatic, and virtually non-flammable.
1
The storage capacity of human brain exceeds 4 Terrabytes.
140
Sound at the right vibration can bore holes through a solid object.
134
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
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
A cubic yard of air weighs about 2 pounds at sea level.
31