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Search results: 15 matches found for force
  1. Obstetrical Forceps — 2019-09-01 13:59:25
    …secret was passed down through the family. {{Image url="ChamberlenForceps" class="left" title="Chamberlen forceps bare remarkable resemblance to modern forceps" width="300" }} …
  2. Cyclonic Vacuum Cleaner — 2018-11-17 15:12:06
    …ration == At a local sawmill, Dyson noticed how the sawdust was removed by large industrial cyclones using centrifugal force to separate the dust and debris, but it was only suitable in industrial settings. James wondered if he could apply this…
    …duct. Dyson had to turn to Japan where he began to work with a company on his invention and in 1986 start to sell the G-Force. It was only available on the Japanese market and not sold under the Dyson name. James later used the money he earned f…
    …rom the G-Force to start up the UK Dyson company {{Image url="Dyson_G-Force.jpg" class="left" title="Dyson G-Force" width="" }} In 1992 Dyson takes out Patent # 5,090,976 (US) for Dual cyclonic vacuum cleaner. By 1995 The Dyson DC01 …
  3. Reinforced Concrete — 2018-10-10 15:00:50
    …Reinforced Concrete :: {{draft}} === William B. Wilkinson 1854 === William Boutland Wilkinson born 2 January 1819 in Newcastle.…
    …ruction of buildings. He experimented with embedded strips of iron in concrete. He used iron bars and wire rope to reinforce the concrete based on broken coke, sand and Portland cement in the floors of a two-story cottage he was building for hi…
    …s servants. The method proved successful. He patented his invention in 1854 creating **reinforced concrete**. His process was in demand and went on to build the concrete platforms at York railway station, floors in …
  4. Electric Motor — 2018-10-10 01:15:13
    …"The principle of the Sturgeon Motor" width="350" }} The simplicity of the **commutator** was ingenious. Keeping this force going in one direction was the clever bit. By flipping the current Sturgeon could make the current reverse every time t…
  5. Powered Flight — 2017-11-11 21:00:20
    …200" }}He experiments led him to develop an efficient cambered airfoil and the first person to identify the four vector forces that influence an aircraft: thrust, lift, drag, and gravity. He successfully flew a gliding aircraft in **1804** and…
  6. Hovercraft — 2017-08-24 11:29:22
    …reduce friction between the surface and the vehicle. ^^"The Admiralty said it was a plane and not a boat, the Royal Air Force said it was a boat and not a plane, the Army were plain not interested." ^^ //Quote from Cockerell.// == Family == Th…
  7. Gravity — 2017-06-10 22:00:35
    …iæ Naturalis Principia Mathematica'//. The First Law states that an object that is not being pushed or pulled by some force will stay still. The Second Law explains how a force acts on an object. An object accelerates in the direction the for…
  8. Electric Generator — 2017-05-25 11:18:24
    … and decided that one day he would write a book of his own. He became interested in the concept of energy, specifically force. Because of his early reading and experiments with the idea of force, he was able to make important discoveries in elec…
    …ces to produce what he called electromagnetic rotation: that is a continuous circular motion from the circular magnetic force around a wire. Ten years later, in 1831, he began his great series of experiments in which he discovered electromagneti…
  9. Police — 2017-05-22 22:57:53
    …ee of co-operation of the public that can be secured diminishes proportionately to the necessity of the use of physical force. ~1) Police seek and preserve public favour not by catering to public opinion but by constantly demonstrating absolut…
    …e impartial service to the law. ~1) Police use physical force to the extent necessary to secure observance of the law or to restore order only when the exercise of persuasion, advic…
  10. Marmite — 2017-01-18 16:21:10
    …r I**. It became a dietary supplement in prisoner-of-war camps in **World War II** and was sent to British peacekeeping forces in Kosovo to boost morale in 1999. {{Image url="WWIfood.jpg" class="right" title="Trench food" width="300" }} == The …
  11. Bouncing bomb — 2016-09-26 13:45:18
    …idth="500" }} == Operation Chastise == The attack on the German dams was carried out on 16–17 May 1943 by Royal Air Force No. 617 Squadron. The Möhne and Edersee Dams were breached, causing catastrophic flooding of the Ruhr and Eder valley…
    … were also either damaged or destroyed. An estimated 1,600 civilians drowned: about 600 Germans and 1,000 mainly Soviet forced-labourers. ::c:: {{image url="Barnes_Wallis_Bomb.jpg" class="right" title="Bouncing bomb" width="200" }} It is quite …
  12. Whisky — 2016-05-26 10:22:03
    …still a mainly monastic production and when King Henry VIII of England dissolved the monasteries in 1541 production was forced underground and overnight. It was this period when whisky received its famous nickname **"moonshine"**. == Then the…
  13. Automatic Kettle — 2016-05-17 16:47:22
    …left" title="K2a" width="200" }} At the rear of the appliance was a bimetallic strip, and when water boiled, steam was forced through an aperture in the lid to the strip, which knocked the switch off. It was simple but ingenious. Even today exa…
  14. Sinoatrial Node — 2016-05-10 15:25:38
    …ter a lecturer. He served on the Medical Research Council and became the director of medical research for the Royal Air Force . He was appointed a Commander of the Order of the British Empire in the 1919 New Year Honours .…
  15. Hydraulics — 2016-03-23 13:34:41
    …inder fitted with a plunger supporting a very heavy weight. The plunger was raised, drawing in water, then the downward force of the weight created the hydraulic pressure. The cranes were efficient powerful AND pollution free. …

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