Physics, 09.08.2019 01:10, jdodger910

Who first calculated the orbits of comets based on historical records dating back to antiquity?

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Physics, 21.06.2019 21:30, ddoherty88

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Physics, 22.06.2019 12:00, Sariyahhall1

Infrared radiation has wavelengths that are shorter than visible light is part of the visible light spectrum has wavelengths that are longer than visible light has the same wavelengths as ultraviolet radiation