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The Chambers Fireless Gas Range was a gas cook stove created by John E. Chambers in 1910, [1] [2] Two years after inventing his fireless cooker, John Chambers organized the Chambers Company in 1912. [1] Chambers' patented method of manufacture [3] used thick rock wool insulation to insulate the oven on all sides. This made it possible for the ...
HID Lamp Color Temperature Range. HID lamps produce different colors of light primarily through the use of various metal additives in the lamp's arc tube and the physics of the gas discharge process. [11] Metal Additives: HID lamps contain an arc tube filled with a mixture of gases, including a noble gas (like xenon). These metal additives are ...
Incandescent light bulbs come in a range of shapes and sizes. Bulb shape and size designations are given in national standards. Some designations are one or more letters followed by one or more numbers, e.g. A55 or PAR38, where the letters identify the shape and the numbers some characteristic size.
Some bulbs include a thermal switch which shorts the starting electrode to the adjacent main electrode, extinguishing the starting arc once the main arc strikes. The mercury-vapor lamp is a negative resistance device. This means its resistance decreases as the current through the tube increases. So if the lamp is connected directly to a ...