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Pierce-Arrow RD (1928-1931)
The Pierce-Arrow Motor Car Company was an American motor vehicle manufacturer based in Buffalo, New York, active from 1901 to 1938. Although best known for its expensive luxury cars, Pierce-Arrow also manufactured commercial trucks, fire trucks, boats, camp trailers, motorcycles, and bicycles. Origin The forerunner of Pierce-Arrow was established in 1865 as Heinz, Pierce and Munschauer. The company was best known for its household items, especially its delicate, gilded birdcages. In 1872, George Norman Pierce bought out the other two principals of the company, changed the name to the George N. Pierce Company, and in 1896 added bicycles to the product line. The company failed in its attempt to build a steam-powered car in 1900 under license from Overman, but by 1901, had built its first single-cylinder, two-speed, no-reverse ''Motorette''. Motorette image In 1903, it produced a two-cylinder car, the ''Arrow''. In 1904, Pierce decided to concentrate on making a larger, more l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peirce Arrow
In Boolean logic, logical NOR, non-disjunction, or joint denial is a truth-functional operator which produces a result that is the negation of logical or. That is, a sentence of the form (''p'' NOR ''q'') is true precisely when neither ''p'' nor ''q'' is true—i.e. when both ''p'' and ''q'' are ''false''. It is logically equivalent to \neg(p \lor q) and \neg p \land \neg q, where the symbol \neg signifies logical negation, \lor signifies OR, and \land signifies AND. Non-disjunction is usually denoted as \downarrow or \overline or X (prefix) or \operatorname. As with its dual, the NAND operator (also known as the Sheffer stroke—symbolized as either \uparrow, \mid or /), NOR can be used by itself, without any other logical operator, to constitute a logical formal system (making NOR functionally complete). The computer used in the spacecraft that first carried humans to the moon, the Apollo Guidance Computer, was constructed entirely using NOR gates with three inputs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
