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The 2000-watt society concept, introduced in 1998 by the Swiss Federal Institute of Technology in Zurich (ETH Zurich), aims to reduce the average primary energy use of First World citizens to no more than 2,000 watts (equivalent to 2 kilowatt-hours per hour or 48 kilowatt-hours per day) by 2050, without compromising their standard of living.
Richard Alan Dreissigacker (born March 26, 1947, in New Haven, Connecticut) is a former American Olympic rower [1] and a founder of Concept2, a manufacturer of rowing equipment. [2] While studying engineering at Brown University he took up rowing and went on to represent the United States at the 1972 Summer Olympics.
The Model K was an early 2-bit binary adder built in 1937 by Bell Labs scientist George Stibitz as a proof of concept, using scrap relays and metal strips from a tin can. The "K" in "Model K" came from " k itchen table", upon which he assembled it.
Concept2, Inc. is an American manufacturer of rowing equipment and exercise machines based in Morrisville, Vermont. It is best known for its air resistance indoor rowing machines (known as "ergometers" or "ergs"), which are considered the standard training and testing machines for competition rowers and can be found in most gyms .
The Curta was conceived by Curt Herzstark in the 1930s in Vienna, Austria.By 1938, he had filed a key patent, covering his complemented stepped drum. [3] [4] This single drum replaced the multiple drums, typically around 10 or so, of contemporary calculators, and it enabled not only addition, but subtraction through nines complement math, essentially subtracting by adding.
The calculator-style keyboard of the TI-99/4 and the high price were cited as a weak points. TI's reliance on ROM cartridges and their practice of limiting developer information to select third parties resulted in a lack of software for the system. The TI-99/4A was released in June 1981 with a simplified internal design, full-travel keyboard ...
The Executive impressed the engineers at Texas Instruments, who had used the same chip to produce a longer and wider calculator that was over three times as thick and a great deal more expensive. [10] In 1974, sales of the Executive exceeded £2.5 million, and Sinclair was producing 100,000 calculators each month, of which 55% were exported. [11]
Concept Two, concept ii, CONCEPT 2, or variation, may refer to: Concept2 , a rowing equipment and exercise machine manufacturer Rimac Concept Two , an all-electric battery-powered hypercar
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