Hot water can freeze faster than cold water.
181
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
If the chemical sodium is dropped into water it will immediately and violently explode.
67
The bark of an older redwood tree is fireproof.
65
One cubic foot of gold weighs more than 1,200 pounds!
78
Aluminum used to be more valuable than gold!
84
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
12