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
Pumice is the only rock that floats on water.
14
The smell of freshly cut grass is actually a plant distress call.
31
Iron weighs more after it rusts.
68
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
German scientists claim to have evidence that suggests that our universe may exist inside of a computer simulated Matrix.
18
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15