Cold water weighs more than hot water.
93
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
Galalith is a type of plastic that can be made from milk. It is odourless, insoluble in water, biodegradable, anti-allergenic, antistatic, and virtually non-flammable.
1
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
Your brain is 80% water.
525
Iron weighs more after it rusts.
16
One 75-watt bulb gives more light than three 25-watt bulbs.
57
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6