ELECTRICITY I. DISCOVER OF ELECTRICITY About 600 B.C.‚ Thales‚ a Greek philosopher and scientist‚ observed that a piece of amber attracted small bits of “paper” or very thin wood shavings after it was rubbed with wool. He had discovered‚ in effect‚ static electricity. William Gilbert‚ an English scientist in the sixteenth century‚ found that many other different materials could be made to act like amber. Whenever these objects were rubbed against each other‚ they were able to attract each other
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Background Electricity consumption is something we do out of habit and unintentionally. We develop our habits based on our needs‚ hobbies‚ works‚ entertainment and enjoyments. We never really aware of how much we use daily and how much the source of energy is left in this world. We are named as screen generation‚ it means we all depending on electronic stuffs to complete and help us out in our daily life. We use air-con‚ television‚ refrigerator‚ fan‚ lamps‚ iron more over we use electricity to charge
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‘Modelling and Forecasting Electricity Consumption of the Philippines’ Researcher: Alejon P. Padriganda Degree Program: Bachelor of Science in Applied Mathematics Adviser: Dennis A. Tarepe Ph.D Introduction Backgorund of the Study In the Philippines‚ electric power is becoming the main energy form relied upon in all economic sectors of the country. As time goes by‚ while different establishments and properties were built and developed‚ the demand for domestic electricity consumption within the
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ocoa Electricity comes to Cocoa Bottom – Essay There are several literary techniques that are used in this poem such as “lamps…Oil” this is very ironic because they have brought old technology to come and see the new technology being unveiled. Also the fact that they are “waiting for sunset” is ironic because they are replacing natural light with artificial light. Near the beginning there is a Simile used “Cable was drawn like a pencil line across the sun” This uses one of the main themes of the
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this would give a non-zero area integral. The divergence of a vector field is proportional to the point source density‚ so the form of Gauss’ law for magnetic fields is then a statement that there are no magnetic monopoles. Gauss’ Law for Electricity The electric flux out of any closed surface is proportional to the total charge enclosed within the surface. The integral form of Gauss’ Law finds application in calculating electric fields around charged objects. In applying Gauss’ law
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Earthquake Loads & Earthquake Resistant Design of Buildings 1. 1 2. Summary 2 3. Earthquake Design - A Conceptual Review 2 4. Earthquake Resisting Performance Expectations 3 5. Key Material Parameters for Effective Earthquake Resistant Design 3 6. Earthquake Design Level Ground Motion 4 6.1. Elastic Response Spectra 4 6.2. Relative Seismicity 5 6.3. Soil amplification 6 7. Derivation of Ductile Design Response Spectra 7 8. Analysis and Earthquake Resistant Design Principles 8 8.1. The Basic Principles
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Diodes Diodes are components that allow current to flow in only one direction. They have a positive side (leg) and a negative side. When the voltage on the positive leg is higher than on the negative leg then current flows through the diode (the resistance is very low). When the voltage is lower on the positive leg than on the negative leg then the current does not flow (the resistance is very high). The negative leg of a diode is the one with the line closest to it. It is called the cathode. The
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Every single day we use electricity to make the things around us work. From the tape player to the electric pumps that send hot water to each of our homes everyday. Without electricity the lights go off‚ water is not heated‚ the television goes off‚ and outside the traffic lights do not work and as a result the city is immediately congested with traffic jams and choke ups in the street. Without that electricity we have everyday the basic things we use do not function. The book I chose to summarize
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Balancing the Load: The See-Saw as a Simple Machine Introduction The see-saw is not just a playground toy‚ it is an example of a simple machine. In physics‚ simple machines are tools that make it easier to do work. A lever is an example of a simple machine. A lever is a straight rod or board that pivots on a stationary point called a pivot point or a fulcrum. Levers are often used to lift heavy loads. A see-saw‚ a shovel‚ and a wheelbarrow are all examples of levers. Abstract Have you ever tried
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Written by: Afreen Baig http://economicpakistan.wordpress.com/2008/01/05/electricity/ "History" After the construction of the Hydro-Electric Tarbela Dam and the Mangla Dam‚ by General Ayub Khan and General Yahya Khan in the 1960’s‚ our governments failed to conceive and initiate major electricity projects. The inept governments of PML-N and PPP‚ that still consider themselves vital to democratic dialogue within the provinces‚ failed to create dialogue within provinces‚ on the most important
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