Scientists aren't sure what color dinosaurs were.
312
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
Sound travels fifteen times faster through steel than through air.
134
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
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
Out of all the senses, smell is most closely linked to memory.
146
There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13