Where does black fall on the color spectrum? A color scientist explains
Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...
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Cold weather helps create blue ice. Here's the science behind it
When the light travels deeper into slowly formed ice, some of the red wavelengths of sunlight — which is the longest wavelength of visible light — get absorbed into the ice structure.
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The expanding Universe Redshift
The same shifts in frequency and wavelength are also observed for light coming from stars in distant galaxies. By comparing the light from distant stars with the spectrum of light from our Sun it ...