Our ancient ancestors didn’t have clothes or houses – but that constant exposure to the sun helped their skin protect itself from the worst sun damage.
UV light at most wavelengths can kill COVID–19.
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UV lights come in a variety of different wavelengths, but not all are equally effective at disinfection. Researchers tested a number of commercially available lights to find the best.
Museum lighting standards assume galleries are still using incandescent bulbs or fluorescent lights. But LEDs offer more for both audiences and conservation.
Why was one gene mutation that affects hair, teeth, sweat glands and breasts ubiquitous among ice age Arctic people? New research points to the advantage it provided for ancestors of Native Americans.
Fluorescent lights do emit UV, but not enough to harm human health.
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If you want to live on Mars, you’re going to need to grow food. Seeds are naturally equipped to handle challenging Earth environments, but how well can they survive what they’ll encounter off-planet?
Don’t skimp on the SPF.
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Coating paper with an inexpensive thin film can allow users to print and erase a physical page as many as 80 times. That reduces both the cost and the environmental effects of paper use.
Alongside the day’s high and low, weather reports generally contain a UV alert for a particular time. But what does it actually mean – and what should you do about it?
International Agency for Research on Cancer has classified UV-emitting tanning devices as a Group I carcinogen – the most dangerous cancer-causing substances.
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Despite the many awareness-raising campaigns on the harmful effects of ultraviolet (UV) radiation, a walk along any tourist beach will tell you just how many sun worshippers continue to soak up the sun…
Professor- Departments of Medical Microbiology & Immunology and Dermatology | Member- Foods For Health Institute | Member- Comprehensive Cancer Center | Director- Autoimmunity | Director- Immune Monitoring, University of California, Davis