Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
At 15 years old, Jack Andraka invented a method of diagnosing pancreatic cancer, thus helping to save the lives of millions of people around the world. It is 168 times faster, 26,000 times cheaper, 400 times more sensitive, and has a 99% success rate.
15
Most dust particles in your house come from dead skin.
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In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Airports that are at higher altitudes require a longer airstrip due to lower air density.
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