THIS book is primarily an account of the researches on colour vision carried out by the author and various co-workers in the technical optics department of the Imperial College of Science and ...

Human color vision is NOT a permanent ability. People born with normal color vision can have their color vision degrade over time due to a variety of causes. These can include alcohol use; medication ...

Under normal illumination ... but you still probably won’t get color. You can also build your own night vision gear without too much trouble.

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