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Trivia Colour That Most People See in the Absence of Light

Professora Akira

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German philosopher and physicist Gustav Theodor Fechner is believed to have investigated and popularized the term Eigengrau. He is also known for his key role in the genesis of the measurement of human perception. Being an early pioneer in experimental psychology, he founded psychophysics and is believed to have inspired most of the 20th-century philosophers and scientists.

What is the darkest colour a human has ever seen? For most people, the obvious answer would be black. More specifically, the blackness of total darkness. After all, black by definition is the absence of light. But total darkness isn’t as far as humans can think.

You may need to cover your eyes if you are in a bright room or outside. Now open them quickly and look at that black object. Now it may take you a few tries to fully see it, but you’ll soon notice that the black object appears darker than the black of total darkness.

When our eyes are open, the light-sensitive layers of cells at the back of our eyeballs called the retina are bombarded by packets of light energy called photons.

The photons are a kind of elementary particle. Or, perhaps they are the quantum of the electromagnetic field that includes electromagnetic radiation like the light. They are also the force carrier for the electromagnetic force. The photons have zero rest mass. They always move at the speed of light within a vacuum condition.

The photons represent visuals like a trigger nerve impulses on the retina that pass through the optic nerve to the brain and a visual image is formed on the retina.

When we close our eyes or enter total darkness most people see vague grey field usually composed of changing regions of tiny black and white dots.
This colour is called the Eigengrau, a German word that means intrinsic grey. What we are seeing is visual noise and it is the static of our retina.





-STSTWmedia
 
salamat sa pag share, pinakita ko ito sa panganay ko na anak at natuwa sya. sabi nya life changing daw yung info na ito at mag aral na sya nang mabuti.
 

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