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In addition, it's probably noteworthy that visible light exists at around a wavelength of 500 nm and that the human eye detects EM radiation (visible light) within the 700 nm (red light) to 400 nm (violet light) region.
I agree! I think that it is important to have a general understanding of which ends of the spectrum red and violet light fall on. Additionally, during a step-up session, it was mentioned that it would be useful to know the order of different kinds of waves from shortest to longest (gamma rays, x-rays, ultraviolet rays, visible, infarred, radio).
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