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Polar Electro Oy (commonly known as Polar) is a Finnish manufacturer of sports training computers, particularly known for developing the world's first wireless heart rate monitor. [1] The company is based in Kempele, Finland and was founded in 1977. Polar has approximately 1,200 employees worldwide, it has 26 subsidiaries that supply over ...
A rangekeeper is defined as an analog fire control system that performed three functions: [2] Target tracking. The rangekeeper continuously computed the current target bearing. This is a difficult task because both the target and the ship firing (generally referred to as "own ship") are moving.
In computer engineering, Halt and Catch Fire, known by the assembly language mnemonic HCF, is an idiom referring to a computer machine code instruction that causes the computer's central processing unit (CPU) to cease meaningful operation, typically requiring a restart of the computer. It originally referred to a fictitious instruction in IBM ...
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Torpedo Data Computer. U.S. Navy Mk III Torpedo Data Computer, the standard US Navy torpedo fire control computer during World War II. Later in World War II (1943), it was replaced by the TDC Mk IV, which was an improved and larger version. The Torpedo Data Computer (TDC) was an early electromechanical analog computer used for torpedo fire ...
A polar bear—the guardian of the ice wand—raises the ice wand from beneath the ocean. Everyone urges Timmy to destroy The Darkness, but he refuses. Timmy realizes that every time The Darkness attacks, it's only out of self-defense. Timmy has fairies add an ice wand to each planet of the Solar System. Along with the white wand at Fairy World ...
February 12 – Sikhote-Alin meteorite falls to Earth in Siberia, the largest iron meteorite known to have impacted. [2]February 20 – The first living things sent into space (and returned) are fruit flies, accompanied by rye and cotton seeds, aboard a V-2 rocket launched by the U.S. Army Ordnance Corps which reaches an altitude of 68 miles (109 km).
The Battery Computer System (BCS) AN/GYK-29 was a computer used by the United States Army for computing artillery fire mission data. It replaced the FADAC and was small enough to fit into the HMMWV combat vehicle. The AN/GSG-10 TACFIRE (Tactical Fire) direction system automated field artillery command and control functions. [8]