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Sức Khỏe
Why do some people sleep very little and still be healthy?
Some people need more sleep than others, and a new study has found that each person’s need for sleep may…
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eSport
Why were electric cars popular a century ago and then disappeared?
But the first electric cars in the US were made before 1900, lasted for another three decades, then stopped in…
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Tech
Little known facts about David Bushnell and humanity’s first submarine
David Bushnell, American inventor, is famous as the father of the submarine. August 30, 1740: David Bushnell was born in…
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