Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
One cubic foot of gold weighs more than 1,200 pounds!
78
Sound at the right vibration can bore holes through a solid object.
134
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
The idea of left brain (logical) and right brain (creative) has no basis in neuroscience and is in fact a myth.
16
A cesium atom in an atomic clock beats over nine billion times a second.
43
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17