Aluminum used to be more valuable than gold!
84
Each day, up to 150 species of life become extinct.
-23
In zero gravity, a candle's flame is round and blue.
16
Most dust particles in your house are made from dead skin!
67
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
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
One third of the electricity produced on earth is used to power electric light bulbs!
75