underwater Photo Course :: (4) Light Underwater :: What is Light?
What is light?
U/W Photo Course
Learn u/w photography the easy way!
There can be few people today, who don't have some idea
of what radiation is, or have not heard the terms electromagnetic and
wavelength. Light is simply electromagnetic radiation of certain wavelengths
visible to the eye. Light is thought of as rays that can travel in straight
lines although these rays can be reflected, refracted, absorbed, or transmitted
when in contact with other media.
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