Hot water can freeze faster than cold water.
181
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
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Aluminum used to be more valuable than gold!
84
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
The average home creates more pollution than does the average car.
33
For a high school science fair project, 17-year-old Michio Kaku built a particle accelerator in his parent's garage that was able to generate a magnetic field 20,000 times greater than the Earth's and produce collisions powerful enough to create antimatter.
34