T here is now a meter for measuring the intensity of ultraviolet rays. Its inventor, Dr. Harvey Clayton Rentschler (Ph. D.) director of lamp research for the Westinghouse Lamp Co., exhibited it ...

The UV index measures the intensity of ultraviolet radiation from the sun on a scale of 0 to 11. The higher the number, the ...

The ultraviolet index measures the intensity of the sun's harmful rays. Learning how to read it can help you protect your ...

UV intensity is higher in May than in August, leading to a high incidence of sunburn in the Spring. ... Meters are available to measure UVB intensity and the scales may range from 0-15.

The UK's first public UV sun meter is unveiled in memory of a BBC Radio Derby presenter who died from skin cancer last year.

At the same UV light intensity it takes to kill 99.9% of SARS-CoV-2 in 20 seconds, a person could be safely exposed to 222-nanometer light for up to one hour and 20 minutes.

We all know UV radiation for its contributions to getting sunburned after a long day outside, but were you aware there are several types different types of UV rays at play? [Michael] has come up wi… ...

Ultraviolet intensity varies during the day. Season of year, time of day, cloud cover and air pollution all affect sunburn times. Sunlight intensity peaks on about June 21.

Killing coronavirus with handheld ultraviolet light device may be feasible Date: June 1, 2020 Source: Penn State Summary: A personal, handheld device emitting high-intensity ultraviolet light to ...