As with any wave, wavelength times frequency equals the speed of a light wave.
As with any wave, wavelength times frequency equals the speed of a light wave.
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In the Biblical creation God created light on the first [[day]]; [[God]] said ''Let there be light,'' and there was light<ref>[[Genesis]] 1:3</ref>.
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In the Biblical creation God created light on the first [[day]]; [[God]] said ''Let there be light,'' and there was light<ref>[[Genesis]] 1:3</ref>. We must thus deduce than light can exist without a source of its own, unless one counts God as a possible source.