Illinois. He saw a wooden rail with nails sticking out and decided to use this to start his design of barbed wire. His wife’s garden needed protection and that started his invention process. One year later in 1874‚ the barbed wire fence was patented. Glidden became a millionaire with assets. His company‚ with partner Issac Ellwood‚ The Barb Fence Company made 10‚000 pounds of barbed wire the first year and 600‚000 pounds by 1875. When Glidden died‚ he was one of the richest people in America. Although
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Discussion Questions 1. Why do different metals have different characteristic flame test colours? The photons emitted during the test precisely match the quantum energy difference between the excited state and the ground state. For different elements the spacing between the ground state and the higher energy levels is different. So different elements have different flame test colours. 2. Most salts contain a metal and a non-metal. Look at the compounds we tested and determine whether it is
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Petit: Sane Wire Walker What do you think when you imagine a man walking on a wire higher than 10 stories high? A French wire walker named Philippe Petit walked over many structures from Notre Dame to Sydney‚ Australia‚ to New York. Through the things he has done‚ people may think he is crazy. However‚ Petit and I think that there is nothing crazy about what he has done. I believe the people/society thinks he is crazy. They see this man up hundreds of feet walking across a wire over famous
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DELHI PUBLIC SCHOOL‚RANIPUR‚HARIDWAR LESSON 6:COMBUSTION AND FLAME DATED:24.07.14 1 COMBUSTION: When a substance combines readily with oxygen to give heat and (light) it is called combustion. 2 COMBUSTILE SUBSTANCE: A substance which burns easily to give heat it is said to be combustible. For ex. Wood ‚paper 3 FUEL: A substance that is burnt for obtaining heat and light is called a fuel. Carbon based fuel: wood ‚coal‚wax ‚petrol etc. Non carbon based fuel: hydrogen 4 CHARACTERISTICS OF AN
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Flame Lab Objective: How an electron absorbs energy and re-emits it as light and why different elements have different spectra. Also to learn how to use flame tests to determine the identity of unknown mixtures. Hypothesis: We know that certain compounds will burn certain flame colors because they emit different wave lengths. Introduction: Neils Bohr made the “Bohr’s Model” in 1922‚ he found that electron travel in specified fields – which‚ when excited‚ will jump to different rings
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Lab 1: Flame Test 11 Chemistry‚ university Preparation Conducted: September 20th‚ 2010 Purpose: To observe‚ and create a chart of the colours produced when solutions of known metal compounds are heated to high temperature. Question: What colours are produced when different metallic compounds are placed in a flame‚ and why this happens? Hypothesis/Prediction: Different salts will produce different colours when placed in a flame‚ due to the fact that each element has a different
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Worldwide Wires “Revenue Recognition Woes” Introduction Worldwide Wires (“WW”) is a company that provides computer network and communications services around the globe. The company offers its services either directly to the customer or through a network of partners that are scattered around the globe. Their business model can be compared to that of a principal and an agent‚ with WW being the former and the partners being the later. The company and the partners enter into 5 year service agreements
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Lab Report Flame Spectroscopy: Applying a Quantum Leap Answer the following questions about the results of this activity. Record your answers in the boxes. Send your completed lab report to your instructor. Don’t forget to save your lab report to your computer! Lab Activity 1 Sample Number of Bands Colors Present Cesium Calibration Standard 18 Violet‚ Green‚ Yellow‚ Orange‚ Red Cesium Spectrum from Chart 13 Violet‚ Green‚ Yellow‚ Orange‚ Red
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did a great job of depicting just how much Philippe appreciated every minute of his life. Philippe not only enjoyed the planning of his wire walk and the adrenaline rush of having to tiptoe around all the security guards patrolling the towers‚ but also the act of setting everything up. We can see this in his expressions‚ during his first few minutes on the wire his face shows complete concentration and then only a few moments later he is peaceful‚ the euphoric expressions on his face tell the story
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Hello Garci Scandal "Hello Garci" refers to the alleged wiretapped conversations where vote rigging in the 2004 elections was discussed by‚ among others‚ a woman presumed to be President Arroyo and man presumed to be Comelec Commissioner Virgilio Garcillano. Ironically‚ the controversy that nearly toppled the Arroyo administration started at the Palace‚ when Presidential Spokesperson Ignacio Bunye released CDs of the Hello Garci conversations on June 6‚ 2005. Days later‚ former NBI Deputy Director
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