Humans can only see less than 1% of the electromagnetic spectrum. Here’s why evolution may have intentionally hidden ...

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 ...

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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?

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 ...

Scientists have long known that ultraviolet light can kill pathogens on surfaces and in air and water. UV robots are used to disinfect empty hospital rooms, buses and trains; UV bulbs in HVAC systems ...

image: a, Schematic diagram illustrating simultaneous broadband 2nd-10th HHG via cascaded 2nd-NL QPM up-conversion upon a mid-IR pump femtosecond laser in CPPLN. b, Schematic diagram illustrating ...

School is almost out, pools will open soon, and more people will head outdoors to soak up the sunshine and warmth of ...