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Low-pressure Hg lamps can be rather small, but efficient sources of deep UV light. Low-pressure mercury-vapor lamps [16] usually have a quartz bulb in order to allow the transmission of short wavelength light. If synthetic quartz is used, then the transparency of the quartz is increased further and an emission line at 185 nm is observed also.
A halogen oven, halogen convection oven, or halogen cooking pot is a type of oven that utilizes a halogen lamp as its heating element. Halogen ovens are often noted for being more energy-efficient than a conventional electric oven due to their more effective heating of food and faster cooking times. [1]
Infrared lamps are also used for some night vision devices where visible light would be objectionable. Infrared lamp sources are used in certain scientific and industrial instrument for chemical analysis of liquids and gases; for example, the pollutant sulfur dioxide in air can be measured using its infrared absorption characteristics.
Extremely hot stars (such as O- and B-type) emit proportionally more UV radiation than the Sun. Sunlight in space at the top of Earth's atmosphere (see solar constant) is composed of about 50% infrared light, 40% visible light, and 10% ultraviolet light, for a total intensity of about 1400 W/m 2 in vacuum.
In his words, useful to "warm rooms, boil water, cook victuals...". [1] Canadian inventor Thomas Ahearn filed patent #39916 in 1892 for an "Electric Oven," [2] a device he probably employed in preparing a meal for an Ottawa hotel that year. [3] Ahearn and Warren Y. Soper were owners of Ottawa's Chaudiere Electric Light and Power Company. [4]
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The term "blowtorch" is commonly misused as a name for any metalworking torch, but properly describes the pressurized liquid fuel torches that predate the common use of pressurized fuel gas cylinders. Torches are available in a vast range of size and output power. The term "blowtorch" applies to the obsolescent style of smaller liquid fuel torches.
Air fryer; Bachelor griller; Barbecue grill; Beehive oven; Brasero; Brazier; Bread machine; Burjiko; Butane torch; Chapati maker; Cheesemelter; Chocolatera; Chorkor oven
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