Timeline of materials technology BC • 29‚000–25‚000 BC – First pottery appears • 3rd millennium BC – Copper metallurgy is invented and copper is used for ornamentation • 2nd millennium BC – Bronze is used for weapons and armour • 16th century BC – The Hittites develop crude iron metallurgy • 13th century BC – Invention of steel when iron and charcoal are combined properly • 10th century BC – Glass production begins in ancient Near East • 1st millennium BC – Pewter beginning to be used in
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1. Indicators were identified with the observation that the colour of some flowers depend on soil composition Classify common substances as acidic‚ basic or neutral * An acid is a substance which in solution produces hydrogen ions‚ H+ or more strictly H3O+‚ sometimes called hydronium ions * A base is a substance which either contains the oxide O2- or hydroxide ion OH- or which in solution produces the hydroxide ion. * A soluble base is called an alkali Common properties of all acids:
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MALACAÑANG Manila PRESIDENTIAL DECREE No. 1185 FIRE CODE OF THE PHILIPPINES WHEREAS‚ death and injury to persons and loss and damage to property by fire have reached alarming proportion that the economic and social gains of the society are being continually undermined; WHEREAS‚ in order to effect a meaningful reduction of the alarming fire losses‚ there is a need to develop national consciousness and involvement of all persons in the prevention and suppression of fires; WHEREAS‚ fire prevention
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ACKNOWLEDGEMENT This project has given me a perfect opportunity to see and know how the concepts of finance are applied in the Industry. The project has been a big learning experience for me and I would like to express my gratitude towards all the people who have guided me throughout‚ and without whose guidance and support this project would not have been completed successfully. I would also like to express my deepest gratitude and sincere regards to Mr. Ajay Joshi‚ Vice President (Finance
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Lorenzo Romano Amedeo Carlo Avogadro di Quaregna e di Cerreto‚[1] Count of Quaregna and Cerreto (9 August 1776‚ Turin‚Piedmont – 9 July 1856) was an Italian scientist. He is most noted for his contributions to molecular theory‚ including what is known as Avogadro’s law. In tribute to him‚ the number of elementary entities (atoms‚ molecules‚ ions or other particles) in 1 mole of a substance‚ 6.02214179(30)×1023‚ is known as the Avogadro constant. Avogadro’s Law Avogadro’s law states that equal volumes
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Running head: GREEN HOUSE EFFECT Gwinnett College Mr. Seder Research Paper 3/27/13 Air pollution and greenhouse gases are the reason for the planet as it is today; the reason why we see campaigns flooding the media informing us to ‘switch off’‚ ‘save the planet’ and ‘turn down the heat’ and the reason why the government is trying to develop a successful scheme‚ such as the carbon tax scheme‚ to reduce air pollution caused by major industries. Air pollution and greenhouse gases are
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Key Issues in the Arts Prof. Rod Stoneman Student: Paul Kearney Student Number: 06892795 Activity vs. Infrastructure in the Arts Activity in the arts is paramount; it the processes by which people make or create art forms‚ without activity the arts would not exist. Galway City is a prime example of a place where art activity is thriving in a small peripheral town with little infrastructure. Galway is a very isolated city; there is one railway station‚ with one destination‚ no airport‚ and
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Abstract Various Wonders of the World lists have been compiled over the ages in order to catalogue the most spectacular natural and man-made constructions. The Seven Wonders of the Ancient World is the first known list of remarkable man-made creations of classical antiquity‚ and was based on guide-books popular among Hellenic sight-seers and only includes works located around the Mediterranean rim. Later lists include those for the Medieval World‚ the Modern World‚ the Natural World and others. The
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What You Will Learn 1. Overview of corporate strategy. 2. Definitions of forward and backward vertical integration 3. Historical reasons for vertical integration 4. Benefits and limitations of using a vertical integration strategy 5. When and when not to vertically integrate Why Learn It? Vertical integration is one of the strategies firms use to try to create a competitive advantage for the entire corporation. Historically‚ firms relied heavily upon vertical integration to control the
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CHEM RESEARCH TASK 1. INDICATORS Identify and describe some everyday uses of indicators including the testing of soil acidity/basicity. • Indicators are used regularly in chemical laboratories during chemical reactions. One important use is to determine the end point of a titration when an acid reacts with an alkali. The reactants and products of such a reaction are colourless so an indicator is a useful way to visually determine when the reaction is complete. Chemists also need to monitor
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