A single speck of dust is half way in size between a subatomic particle and the Earth.
15
The average temperature at 40,000 feet above sea level is -60 F.
56
Sound travels about 4 times faster in water than in air.
408
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
The force of a suction cup is calculated using F=AP.
15
One ragweed plant can release as many as one billion grains of pollen!
51
German chemists made a replica of a trophy the size of one molecule.
68
Your brain is 80% water.
525