The Earth's atmosphere weighs about 5.5 quadrillion tons.
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Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
Indoor pollution is 10 times more toxic than outdoor pollution.
62
A ball of glass will bounce higher than a ball made of rubber.
73
Diamonds can be shattered with a hammer.
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One ragweed plant can release as many as one billion grains of pollen!
51
Dr.Jonas Salk, the man who came up with the cure for polio, didn’t patent the drug. This made the drug more affordable to the general public, and he lost out an an estimated $7 billion dollars for himself.
41
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6