An ultraviolet photon-counting dual-comb spectrometer. Two ultraviolet frequency combs of slightly different pulse repetition frequencies are generated at very low light levels by nonlinear frequency ...

I was reading a children's book about insects to my daughter, and it said that bees see colors differently than humans do. My daughter immediately asked, in short succession: "What colors do they see?

What is UV-Vis Spectroscopy? UV-Vis spectroscopy, short for ultraviolet-visible spectroscopy, is an analytical technique that measures the absorption or reflectance of light by a sample in the ...

Add Popular Science (opens in a new tab) More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results.

The world’s astronomers now have access to amazing details about the invisible ultraviolet light from the Sun, thanks to a new ‘spectral atlas’ prepared with the SUMER instrument on the SOHO ...

Indoor life is comfortable for pet birds, but it comes with one big downside: most homes don’t provide the kind of light birds evolved to live under. In the wild, birds spend hours in sunlight that ...