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Science Fact

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It's a common belief that humans use only 10 percent of their brains. MRI imaging has shown that humans actually use most of their brain, even while sleeping.

Science

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A dolphin's flipper is made up of five distinct bone structures, similar to that of a human hand.

Animals

Dolphins sleep with only one side of their brain, keeping one eye open and one eye closed. They surface every 20 to 30 minutes to breathe, and they are never totally unconscious while sleeping.

Animals

Between 30,000 and 40,000 skin cells fall off you every minute as new cells grow and take their place. Your outer skin layer will be completely replaced by new cells in one to two months.

Science

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The human brain receives 400 million bits (47 Megabytes) of information every second. Of those, we are only consciously aware of 2000 bits (0.0002 megabytes).

Science

Chopping up onions activates a chemical reaction that releases sulfur gas. Water in the human eye reacts with sulfur gas to create sulfuric acid. Although the amount of acid is very small, it's enough to cause a burning sensation in the eye.

Nature

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