city-states. As we know‚ catapults were mainly used in the medieval era‚ or rather‚ it is most famous for use in that time‚ which you have probably seen in movies and books. How Does the Catapult Work? There is quite a bit of science behind the making of the catapult‚ and how it works. It is similar to a ballista that it works by storing tension in a flexed piece of wood or in twisted ropes. It’s similar to a bow‚ but on a much larger scale. However‚ that is just the catapult which is probably most
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HOW AN ELECTRIC GENERATOR WORKS Electrical generators by definition are devices that convert mechanical energy into electric energy. The mechanical energy in turn is produced from chemical or nuclear energy in various types of fuel‚ or obtained from renewable sources such as wind or falling water. Steam turbines‚ internal-combustion engines‚ gas combustion turbines‚ electric motors‚ water and wind turbines are the common methods to supply the mechanical energy for such devices. Generators
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Kierra Roberts 1-4-11 11B How Do Batteries Work? Electricity is the flow of electrons through a wire‚ that is called a circuit. Batteries have three parts to them‚ an anode‚ a cathode‚ and an electrolyte. The cathode and the anode are hooked up to an electrical circuit. The chemical reaction that is happening causes the electrons to build up at the anode. When the circuit is closed the electrons will be able to get to the cathode. When the electrochemical process change the
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How Does the Thermometer Work? A thermometer is a device that measures the temperature of things. The name is made up of two smaller words: "Thermo" means heat and "meter" means to measure. You can use a thermometer to tell the temperature outside or inside your house‚ inside your oven‚ even the temperature of your body if you’re sick. One of the earliest inventors of a thermometer was probably Galileo. We know him more for his studies about the solar system and his "revolutionary" theory
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1. Introduction 1.1. Literature Review 1.2. Objective 1.3. Research Problem 1.4. Research Methodology 2. Why do parents think spanking works? 2.1. Introduction 2.2. Why children should never be spanked? 2.3. Spanking and disciplining children 3. Corporal punishments in Schools and Institutions 4. Child spanking- jurisprudential analysis 4.1. Austin’s Analytical Positivism 4.2. Hart’s Analytical Positivism 5. Sociological school of jurisprudence 5.1. Rudolf Von Ihring 5.2. Roscoe Pound 6.
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up compounds that need to be tested‚ taking those compounds with it. Through adsorption‚ the mobile phase separates into different components (soinc). The mobile phase can be liquid‚ gas‚ or supercritical fluid. How Does Chromatography Work? Chromatography is a surface effect. It works by first starting off with an unidentified liquid being injected into a column. As the chemicals in the liquid move down the column‚ they separate depending on their physical and chemical attributes‚ such as speed
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about life in the Sixties and mentioned that computers were in existence‚ but housed in temperature controlled rooms and took up a great deal of space. This made me wonder how our lives have changed since computers have become commonplace. I attended high school in the late 70’s and remember a small group of students were selected to take a “computer class” which turned out to be a programming class. I wasn’t one of them. In fact‚ I didn’t see another computer until my first office job in the early 80’s
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How the Predator UAV Works Military commanders use tactics and strategy in combat to inflict as much damage on the enemy while trying to risk as few personnel and resources as possible. This principle was at the heart of the development of the RQ-1 and MQ-1Predator Unmanned Aerial Vehicle. These high-tech aircraft‚ controlled by a crew miles away from the dangers of combat‚ are capable of reconnaissance‚ combat and support roles in the hairiest of battles. In a worst-case scenario‚ if a Predator
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Write an essay that explains how the Electoral College works. How does the Electoral College shape the strategy of candidates? Why is it harder to win presidential elections post 1968? Every four years‚ on the Tuesday following the first Monday of November‚ millions of U.S. citizens go to local voting booths to elect‚ among other officials‚ the next president and vice president of their country. Their votes will be recorded and counted‚ and winners will be declared. But the results of the popular
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How Diversity Makes Us Smarter Being around people who are different from us makes us more creative‚ more diligent and harder-working. Sep 16‚ 2014 |By Katherine W. Phillips 0 The first thing to acknowledge about diversity is that it can be difficult. In the U.S.‚ where the dialogue of inclusion is relatively advanced‚ even the mention of the word “diversity” can lead to anxiety and conflict. Supreme Court justices disagree on the virtues of diversity and the means for achieving it. Corporations
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