Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Most dust particles in your house are made from dead skin!
67
In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
Pure water (H2O) does not conduct electricity on its own.
46
Aluminum used to be more valuable than gold!
84
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16