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Light (The eye (An eye is composed of more than 2 million working parts.
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Light
The eye
Eyes began to develop 550 million years ago. The simplest eyes were patches of photo receptor protein in single-celled animals.Your eyes start to develop two weeks after you are conceived.
To protect our eyes they are positioned in a hollowed eye socket, while eyebrows prevent sweat dripping into your eyes and eyelashes keep dirt out of your eyes so you don't get eye infections.
Fun Fact:
It is true that your eyeballs stay the same size from birth to death, while your nose and ears continue to grow.
The human eye weights approximately just under an ounce and is about an inch across, an eye cannot be transplanted. more than 1 million nerve fibers connect each eye to the brain and currently we’re not able to reconstruct those connections.
80% of our memories are determined by what we see.
An eye is composed of more than 2 million working parts.
Only 1/6 of the human eyeball is exposed, corneas are the only tissues that don’t have blood.
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The Earth, Sun and Moon
:fire:
Our Earth spins on it's axis every 24 hours [1 day] so we get night and day but if the Earth stopped spinning we would get 6 months of day and 6 months of night!
A solar eclipse is when the moon gets in the way of the Earth and the sun so it is always day when this happens so it could even go black for 7 minutes and 31 seconds.
The sun is our main source of light and lights up our world but without our sun we would not be here and it would be unimaginably cold!
Between 21st March and 21st September days are longer than nights in the Northern Hemisphere.In the Southern Hemisphere it is visa-versa! :
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Reflection of light
:star:
Reflection of light is when an object like a mirror reflects light and it sends light of in a different direction!
Light reflects from a smooth surface at the same angle as it hits the surface. For a smooth surface, reflected light rays travel in the same direction. This is called specular reflection. For a rough surface, reflected light rays scatter in all directions. This is called diffuse reflection.
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There are three types of reflection there is Mirror reflection , Secular reflection and Diffuse reflection.
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