Mirror mirror on the wall; the story of justus von liebig’s invention “There are two ways of spreading light‚ to be the candle or the mirror that reflects it.” the inventor of the first silver plated mirror was Justus Von Liebig‚ a german chemist. His invention was first created about 200 years ago in germany. The very first mirror dates back to 6000 B.C. in modern day turkey Justus Von Liebig‚ created a method of mirror making which involved depositing silver‚ instead of the previously used lead
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1.John is twice as old as his friend Peter. Peter is 5 years older than Alice. In 5 years‚ John will be three times as old as Alice. How old is Peter now? 2. John’s father is 5 times older than John and John is twice as old as his sister Alice. In two years time‚ the sum of their ages will be 58. How old is John now? 3. Joan is 3 times as old as her sister. In 3 yeas ‚ shee will be two years more than twice the age her sister will be then. What are their ages? 4. Kevin is 4 years older than
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material’s resistance to localised plastic deformation (i.e. small dents or scratches). As said above‚ a variety of metal alloys were used in the experiments to understand how each of these metals is characterised as a hard metal and to compare the hardness of different metal alloys. A study of how the molecular structure and the carbon content affects the hardness of each metal alloy used is also done during the course of the experiment. Three different tests are used‚ namely: (i) Vicker’s Hardness
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SCORE SCIENCE 10 ONE MARK MODEL QUESTION PAPER CHAPTERWISE Compiled By‚ A. JEBASINGH‚ M. Sc.‚ M.Ed.‚ M.Phil. BT Asst. (Science) Edited By‚ A. SAVARIMUTHU‚ B.Sc.‚ M.A.(Eng).‚ B.Ed. BT Asst. (Science) Typed By‚ J. LOGESH OUR SINCERE THANKS TO Rev. Bro. Dr. M.IRUDHAYAM M.Sc.(Phy).‚ M.Sc.(E&E)‚ M.Sc.(Psy).‚ M.A.(Eng).‚ M.Phil.‚ M.A.(Soc).‚ M.Phil.‚ PGDCA‚ PGDHET‚ PGDEA‚ MBA‚ M.Ed.‚ PhD. HEADMASTER & CORRESPONDENT ST. JOSEPH’S HR. SEC. SCHOOL CHENGALPATTU- 603002 CONTACT
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Profile of Steel Industry in India (Managerial Economics) CONTENTS Introduction Market Size Investments Government Initiatives Steel Prices Supply and Demand Analysis Cost of production Production Functions and Input: Fixed & Variable Inputs: Total & Average cost: Calculating Average
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|WEEK |LEARNING OBJECTIVES |LEARNING OUTCOMES |ACTIVITIES |REMARKS | |1 |FORM 4 ORIENTATION | | |4/1 – 6/1 |
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Lehigh Steel: The Case for Activity Based Costing and The Theory of Constraints Introduction: Lehigh Steel is a steel and alloy production company with a huge range of products. It was able to reach a record profit in 1988‚ but went down to a record loss by 1991. Lehigh is owned by a parent company‚ The Palmer Company who’s a global manufacturer of alloy and steel and were interested in Lehigh’s specialised equipment to allow them to gain a competitive advantage. Palmer had acquired Lehigh
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to any of a variety of steel alloys that engineers primarily use to construct machine tool bits and blades and drill bits for industrial power tools. Materials scientists can infuse this steel with differing percentages of elements to form a variety of HSS manufacturing alloy types. While all of these different types exhibit HSS’s characteristic resistance to high-temperature‚ the properties of each alloy will vary depending on the percentage of other elements the alloy contains. Physical Composition
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Desalination of Seawater Project Paper The main concept of this Desalination process is reverse osmosis‚ but we will get into that later. Right now what is probably running through your head is what exactly is desalination. To put it simply desalination is the process to make seawater or otherwise undrinkable water safe to consume. This can be accomplished through a variety of methods such as the simplest but one of the ones that requires a lot of money would be distillation. Distillation is commonly
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With the number of ball mill manufacturer’s increasing‚ the requirement of ball mill by customers becomes more and more strict. The material of ball mill lining board is changed into medium alloy steel from former high manganese steel. To fit the ever-changing market‚ our cement ball mill adopt medium alloy steel of high quality as material to make ball mill lining board. Henan Hongxing Machinery Co.Ltd parts workshop manufactures ball mill lining board with advantages followed: First‚ wear resistance
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