Ads
related to: uv lights locally near me
Search results
Results from the WOW.Com Content Network
Get the Columbus, OH local weather forecast by the hour and the next 10 days.
This is the recipe for another view of the northern lights. It has been a fairly active year […] Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 ...
The sky around Columbus erupted into a dazzling light show Thursday night as a solar storm made the northern lights visible in Ohio's capital city. And it may not be over yet. The earth's ...
Typically, light from xenon flash lamps is highly actinic, as is daylight as both contain significant green-to-UV light. In the first half of the 20th century, developments in film technology produced films sensitive to red and yellow light, known as orthochromatic and panchromatic , and extended that through to near infra-red light.
A portrait taken using only UV light between the wavelengths of 335 and 365 nanometers. Photographic film responds to ultraviolet radiation but the glass lenses of cameras usually block radiation shorter than 350 nm. Slightly yellow UV-blocking filters are often used for outdoor photography to prevent unwanted bluing and overexposure by UV rays.
UV-B lamps are lamps that emit a spectrum of ultraviolet light with wavelengths ranging from 290–320 nanometers. This spectrum is also commonly called the biological spectrum due to the human body's sensitivity to light of such a wavelength. [1] UV-B light does not tan the skin very much, compared to the UV-A lamps that are used in tanning beds.
Ads
related to: uv lights locally near me