Search results
Results from the WOW.Com Content Network
In the US lighting industry, foot-candles are a common unit of measurement used by architects to calculate adequate lighting levels. Foot-candles are also commonly used in the museum and gallery fields in the US, where lighting levels must be carefully controlled to conserve light-sensitive objects such as prints, photographs, and paintings, the colors of which fade when exposed to bright ...
Daylight harvesting systems are typically designed to maintain a minimum recommended light level. [1] This light level will vary according to the needs and use of the space; for example, the commonly recommended light level for offices is 500 Lux (or around 50 foot-candles) on the desktop.
An important property of light fixtures is the luminous efficacy or wall-plug efficiency, meaning the amount of usable light emanating from the fixture per used energy, usually measured in lumen per watt. A fixture using replaceable light sources can also have its efficiency quoted as the percentage of light passed from the "bulb" to the ...
The northern lights, seen here in Oregon in May, might be visible in parts of the U.S. on New Year's Eve. (Jenny Kane/AP) (ASSOCIATED PRESS)
After opening a second branch of the Mayo Clinic in Jacksonville, Florida in 1986, the Mayo Clinic opened a third branch in Scottsdale, Arizona in June 1987. The initial staff in Scottsdale included 47 physicians and 225 allied health workers. The Scottsdale campus includes the Mayo Clinic Building, the Samuel C. Johnson Research Building and ...
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Light levels should be kept at 50–100 Lux (5–10 footcandles) for most photographs when in use for research as well as exhibit. [23] Exposure of color slides to the light in the projector should be kept to a minimum, [22] and photographs should be stored in dark storage. [23] The best way to preserve a photograph is to display a facsimile. [7]
Keeping your environment at the recommended range helps maintain that core temperature, “which is crucial for initiating and sustaining deep sleep,” Dr. Vendrame adds. Why sleep temperature ...