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To house this device, he decided on a 2-inch round device with one end capable of being screwed into a light bulb socket and the other end able to receive a light bulb. [ 4 ] When solid-state dimmers came into use, analogue remote control systems (such as 0-10 V lighting control systems) became feasible.
Joel Solon Spira (March 1, 1927 – April 8, 2015) was an American inventor, entrepreneur, and business magnate.. He invented a version of the light-dimmer switch for use in homes around the United States and led his Lutron Electronics Company into the production of lighting controllers.
A street lamp mounted on a bracket and column A high pressure sodium street light fixture. Street light interference, sometimes called high voltage syndrome, is the claimed ability of individuals to turn street lights or outside building security lights on or off when passing near them. [1]
"Lake-effect snow develops when cold air moves over a relative. When lake-effect snow hits regions of the Great Lakes during late fall and winter, you start to hear meteorologists use terms like ...
The #FitTok trend has been everywhere for a while now, and it's all about providing top-tier workout vibes, of course.
The stack effect in chimneys: the gauges represent absolute air pressure and the airflow is indicated with light grey arrows. The gauge dials move clockwise with increasing pressure. The stack effect in industrial flue gas stacks is similar to that in buildings, except that it involves hot flue gases having large temperature differences with ...
During extreme cold events, you may hear a loud boom and feel like you have experienced an earthquake. ... As little as 6 inches of snow is enough to keep the freezing air from affecting the ...
The first documented occurrence was in 1952, after the death of actress Gertrude Lawrence, though the house lights inside the theater were dimmed. [ 3 ] [ 4 ] The practice was initially very rare and was repeated only twice in the following quarter-century: for Oscar Hammerstein II in 1960 (involving the dimming of marquee lights, which became ...