0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
A ball of glass will bounce higher than a ball made of rubber.
73
One cubic foot of gold weighs more than 1,200 pounds!
78
Sound travels about 4 times faster in water than in air.
408
Scientists in Germany have developed a candy that doesn't cause cavities.
11
Iron weighs more after it rusts.
16
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
Hot water can freeze faster than cold water.
181