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An aquarium heater is a device used in the fishkeeping hobby to warm the temperature of water in aquariums. [1] Most tropical freshwater and marine aquariums are maintained at temperatures that range from 22 to 30 °C (72 to 86 °F). [1] [2] [3] The types include glass immersion heaters and undergravel heating. There are also heating mats that ...
The bomb, found resting on a steep slope nearly 2,500 ft (760 m) deep, was located by Alvin but the submersible had difficulty raising it up, initially causing it to fall deeper to 2,800 ft (850 m). The bomb was eventually raised intact on April 7 by a Navy CURV-I and the experience gained by the Alvin crew's 34 dives with over 220 hours logged ...
The crankcase heater keeps refrigerant at a temperature higher than the coldest part of the system. A crankcase heater generally has the same electrical symbol as a resistor because it converts electricity directly into heat via electrical resistance. The resistance in the heater coil determines the heat it produces when voltage is applied. [1]
It was the brainchild of Al Meyers and was a development of his Meyers MAC-145 design. The holder of a number of speed records in its class, the Meyers 200 is widely admired for its clean lines, and is also known for its exceptionally sturdy airframe.
The M2 Bradley, or Bradley IFV, is an American infantry fighting vehicle that is a member of the Bradley Fighting Vehicle family. It is manufactured by BAE Systems Land & Armaments (formerly United Defense) and entered service in 1981, with fielding beginning in 1983.
The Armscor M200 or Rock Island Armory M200 is a double-action revolver made by Armscor in the Philippines. It is chambered for the .38 Special cartridge. The revolver utilizes a transfer bar safety and comes with black, polymer combat grips.