Diamonds can be shattered with a hammer.
-104
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
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
A cesium atom in an atomic clock beats over nine billion times a second.
43
Balsa wood is classified as a hard wood!
41
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21