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Biology: Facts on Human Sense organs, Hearing Fact and Human Eyes Fact



Biology: Facts on Human Sense organs, Hearing Fact, and Human Eyes Fact

Human Ears Hearing fact

A human ear contains about 24,000 fibers in it.

The human ears can hear in the frequency of 1,000 to 50,000 Hertz.

The sound that is above 130 decibels can cause pain to our ears.

It only takes 7 pounds of pressure to rip your ear off.

Your ears never stop hearing, even when you sleep. Your brain just ignores incoming sounds.

Tiny hair cells in your inner ear are what translates sound waves to electricity to send to the brain.

Human Eyes Fact

The eye has 110-130 million receptors to perceive light.

The human eyeball is 24.5 mm long.

Women blink nearly twice as much as men.

Human eyes are the fastest moving body part.

There are near about 1,200,000 optic fibers in the human eye.

There are 137 million light-sensitive cells in the eye's retina and the fluid that fills the eye is changed 15 times a day.

The eye is the only multi-focus lens in the world which can adjust in 2 milliseconds.

Human Eyes can see ultraviolet light, the ability is just filtered out by the eye's lens.

The eyeball of a human weighs near about 28 grams. 


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