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California’s largest wildfire of the year has burned an area larger than the size of the entire city of Los Angeles, destroyed dozens of buildings and forced thousands of residents to flee their ...
The spectrum of light produced by an incandescent lamp closely approximates that of a black body radiator at the same temperature. [81] The basis for light sources used as the standard for color perception is a tungsten incandescent lamp operating at a defined temperature. [82] Spectral power distribution of a 25 W incandescent light bulb.
Omaha Steaks. In honor of July Fourth, Omaha Steaks is offering the following deals: 50% off sitewide and free shipping for order $149+. 4th of July Grill Pack (discounted to $129.99) Summer Best ...
White Christmas (weather) A Christmas card depicts the ideal of a white Christmas. A white Christmas in Trondheim. A white Christmas is a Christmas with the presence of snow, [1] either on Christmas Eve or on Christmas Day, depending on local tradition. The phenomenon is most common in the northern countries of the Northern Hemisphere.
Airbnb, Inc. ( / ˌɛərˌbiːɛnˈbiː / AIR-BEE-en-BEE) is an American company operating an online marketplace for short-and-long-term homestays and experiences in various countries and regions. The company also acts as a broker and charges a commission from each booking.
Luminous efficacy is a measure of how well a light source produces visible light. It is the ratio of luminous flux to power, measured in lumens per watt in the International System of Units (SI). Depending on context, the power can be either the radiant flux of the source's output, or it can be the total power (electric power, chemical energy ...
Solar lamp. A solar lamp, also known as a solar light or solar lantern, is a lighting system composed of an LED lamp, solar panels, battery, charge controller and there may also be an inverter. The lamp operates on electricity from batteries, charged through the use of a solar photovoltaic panel. Solar-powered household lighting can replace ...
George Corley Wallace Jr. (August 25, 1919 – September 13, 1998) was an American politician and judge who served as the 45th governor of Alabama for four terms. He is remembered for his staunch segregationist and populist views. [ 2][ 3][ 4] During Wallace's tenure as governor of Alabama, he promoted "industrial development, low taxes, and ...