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.
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Sound travels about 4 times faster in water than in air.
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One ragweed plant can release as many as one billion grains of pollen!
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Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
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Sound travels fifteen times faster through steel than through air.
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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.
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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.
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