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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Lava This presentation will discuss two questions which are How is Lava Produced? And What hazards/dangers does lava pose? It will also study one example of a Lava Flow in Hawaii. Lava is molten rock expelled by a volcano during erupting. It is produced/ formed in the interior of planets including Earth and their satellites. When the lava is first erupted from the vent in a volcano otherwise known as the volcanic vent‚ lava is a liquid and varies from 700°C to 1‚200°C. Although lava is
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To what extent can preparedness and planning mitigate the effects of volcanic hazards? Volcanic activity happens across the surface of the globe and naturally hazards occur too. It can be said that it’s easier to predict an event than prevent it‚ however prediction does have a positive impact on the effects of a volcanic hazard. Firstly‚ the extent to which preparation and planning can decrease effects can only be done by prediction. There are numerous ways in which volcanoes can be monitored
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Design and Materials Gili Heriawan Farahsyifa Mutiara Khansa Khaula Muhammad Rausyan Fikri Ajeng R.P. Rizki Ihza P. Designing New Medicinal Drugs • What we need to know ? • Identify the structural features of the active site for particular enzyme associated with the pathogen. • Determine the functional groups present to ensure effective binding of the drug. • Intermolecular bonds of drugs-activesite : • Hydrogen bond • Ionic attraction • Dipole-dipole forces • Van der Waals’
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ASEAN was created on August 8‚ 1967 by five founding members; Thailand‚ Indonesia‚ Singapore‚ Malaysia‚ the Philippines. Malaysian foreign minister Ismail Abdul Rahman said at that time: ‘we have to come to a profound shared realization that we will not be able to survive as independent nations for long…‚ unless we think and act at the same time as residents of Southeast Asia’ . At perilous times when the nation-states were pressurized into joining either one of the two major blocs‚ Southeast Asian
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INTRINSIC VERSUS EXTRINSIC REWARDS: RESOLVING THE CONTROVERSY William E. Reif In his foreword to Work in America‚ Elliot Richardson included the following quote from Richard Nixon’s 1971 Labor Day Address: In our quest for a better environment‚ we must always remember that the most important part of the quality of life is the quality of work‚ and the new need for job satisfaction is the key to the quality of work.^ Although some might question the belief that work is a central life force‚ the
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Identifying how conflict handling behavior may influence the outcomes of negotiation‚ Experimental Method‚ The preferred conflict styles of the negotiation pairs would affect the outcomes achieved on the 1) avoiding (unassertive‚ uncooperative)‚ (2) competing (assertive‚ uncooperative)‚ (3) accommodating (unassertive‚ cooperative)‚ (4) collaborating (assertive‚ cooperative)‚ and (5) compromising (intermediate in both assertiveness and cooperativeness)‚Regardless of the conflict handling style most of the
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Family Clothing Business Plan Executive Summary ReHabiliments‚ established as a Limited Liability Corporation‚ is a clothing and apparel business. The company sells trendy clothing and apparel‚ such as casual and active wear‚ head gear‚ work-out gear‚ leather coats‚ and baseball jackets to an international market consisting of individuals of all ages‚ from all walks of life. After purchasing £500 in clothing (e.g.‚ tee shirts and sweat shirts)‚ the owner has the apparel designed and silk-screened
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Safe Food Handling Alternate Names food safety food sanitation and hygiene Definition Safe food handling practices limit the risk of foodborne illnesses or food poisoning. Culprits of foodborne illness include produce‚ cooked and raw meat‚ eggs‚ and canned foods. What food source is the nutrient found in? If not handled properly‚ many foods can become contaminated with germs and organisms that make people sick when the food is eaten. Experts estimate that between 6.5 and 33 million cases of
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NATURAL HAZARDS AND DISASTERS IN THE CARIBBEAN Definitions A hazard can be defined as‚ “A potentially damaging physical event‚ phenomenon or human activity that may cause the loss of life or injury‚ property damage‚ social and economic disruption or environmental degradation”. Hazards can include latent conditions that may represent future threats and can have different origins: natural (geological‚ hydrometeorological and biological); or induced by human processes (environmental degradation
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