Sound travels about 4 times faster in water than in air.
408
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
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
Each day, up to 150 species of life become extinct.
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Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39