Helios, the sun god in Greek mythology, rode a chariot across the sky, east to west, sunrise to sundown, year round, as dusk bestows silvery moonlight accompanied by stars that extend to infinity...
Maybe you’ve read about specific wavelengths of ultraviolet (UV) light being used to sanitize objects and inactivate the SARS-CoV-2 virus. Or perhaps you’ve seen something about how certain...
The sky is blue due to a phenomenon called Raleigh scattering. This scattering refers to the scattering of electromagnetic radiation (of which light is a form) by particles of a much smaller...
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