To commemorate the centenary of the French Revolution‚ France held the Universal Exhibition of 1889 in Paris. In preparation for the event‚ a large design competition began‚ hosted by the Journal Officiel‚ to “study the possibility of erecting an iron tower on the Champ-de-Mars” (Official Site‚ 2008). The design specifications detailed the height of tower‚ the width of the mandatory square-shaped base‚ and also stated that it must be one that could be easily demolished. Over 700 proposals were
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when they are in contact with salt water‚ and acid rain. We chose to see what would happen to various metals when they contacted with salt water. When the electrons move around in the salt water‚ it causes the metals to rust. The metals we chose were iron‚ copper‚ lead‚ zinc‚ and aluminum. Those are some of the most commonly used industrial metals. We got the salt water directly from the beach‚ so that we would get the same reaction if this happened in real life. The chemicals that are
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extracted and used for many thousands of years * Outline and examine some uses of different metals through history‚ including contemporary uses‚ as uncombined metals or as alloys. Contemporary Uses of common metals Metal | Uses | Iron and Steel (an alloy with <2% carbon)Good tensile strength‚ cheap‚ rusts (corrodes) | - Railways‚ bridges‚ buildings- motor cars bodies‚ ships and trains- Engine blocks‚ fire hydrants‚ drainage pipes‚ and gates- Reinforcing in concrete (roads‚ bridges
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between MB and EEI policies. a) Both are operational policies. b) EEI policy does not cover sabotage and terrorism which is covered under MB policy c) MB policy does not cover fire and allied perils which are covered under EEI policy. d) MB policy can be extended to cover all perils covered under EEI policy. Ans. c) MB policy does not cover fire and allied perils which are covered under EEI policy 5) Terrorism cover is available for the policies a) MB EEI CPM b) DOS
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either ferrous or non-ferrous. So what is the difference between ferrous and non-ferrous metals? It is the most frequently asked questions. Shortly speaking‚ ferrous metals and alloys contain iron while non-ferrous materials do not. Ferrous metals include mild steel‚ carbon steel‚ stainless steel‚ cast iron‚ and wrought iron. These metals are primarily used for their tensile strength and durability‚ especially mild steel which helps hold up the tallest skyscrapers and the longest bridges in the world. Besides
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← Understand the manufacture of sulphuric acid. ← Synthesise the manufacture of ammonia and its salts. ← Understand alloys. ← Evaluate the uses of synthetic polymer. ← Apply the uses of glass and ceramics. ← Evaluate the uses of composite materials. ← Appreciate various synthetic industrial materiala. (H4SO4) ← USES OF SULPHURIC ACID 1. Sulphuric acid is used to produce chemical fertilizer such as ammonium sulphate and potassium sulphate‚ which are highly soluble in water
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. SUMMARY OF PROPOSAL Welding is a process used to join metal parts by producing a coalescence‚ called a weld‚ at a joint. Advances in welding technology have opened the way for innovative designs in structures and machinery. Of modern welding processes‚ the greatest number fall under the general classifications of arc welding‚ gas welding and cutting‚ resistance welding‚ and brazing. Tungsten Inert Gas (TIG) welding is one of the arc welding methods. This method is suitable for many kinds
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Biomed. Mater. Res.‚ 9‚ 151-167‚ 1975. 7. M. Semlitsch‚ "Properties or Wrought CoNiCrMo Alloy Protasul-10‚ a Highly Corrosion and Fatigue Resistant Implant Material for Joint Endoprostheses‚" Eng. Med.‚ 9‚ 201-207‚ 1980. 8. Biophase Implant Material‚ Technical Information Publ. No. 3846‚ Richards Mfg. Co.‚ Memphis‚ Tenn.‚ 1980‚ p.7. 9. C.J. E. Smith and A. N. Hughes‚ ’ ’The Corrosion Fatigue Behavior of a Titanium-6 w/o Aluminum-4 w/o Vanadium Alloy‚" Eng‚ Med.‚ 7‚ 158-171‚ 1966. 10. J. H. Dumbleton
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1817 - German baron Carl Von Drais develops the ‘draisienne walking machine’‚ commonly known as a ‘hobby horse’ or ‘dandy horse’. It was the first bicycle to feature steering and it comprised a wooden frame and wheels (rimmed with wrought iron) and wrought iron forks. 1839 - Scottish blacksmith Kirkpatrick Macmillan was the first person to give the bicycle pedal power. He added treadles to the rear wheel of his hobby horse. They were operated by rods connected to cranks and foot stirrups. It was
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We all know Iron Man as the man in the red armor‚ yet we cease to know exactly what made the suit capable of it’s abilities. Nanotechnology is the prime reason behind Iron Man’s abilities in both the comic and movies. His suit actually contained little iron‚ in fact‚ the suit was “heavy‚ dense and prone to rust” (16). Thanks to Nanotechnology the suit was altered into something that would weigh less‚ be easier to maneuver in and prevent him from being injured during combat. As stated by Lynne Robinson
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