for plane stress and plane strain‚ thin cylinders; shear force and bending moment diagrams; bending and shear stresses; deflection of beams; torsion of circular shafts; Euler’s theory of columns; strain energy methods; thermal stresses. Theory of Machines: Displacement‚ velocity and acceleration analysis of plane mechanisms; dynamic
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BALANCING OF ROTATING MACHINES The first thing to be explored to control vibrations is to try to alter the source so that it produces less vibration. This method may not always be feasible. Some examples of the sources of vibration that cannot be altered are earthquake excitation‚ atmospheric turbulence‚ road roughness‚ and engine combustion instability. On the other hand‚ certain sources such as unbalance in rotating or reciprocating machines can be altered to reduce the vibrations. This can
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ELECTRONIC VOTING MACHINE 1. What is an Electronic Voting Machine? It is a simple electronic device used to record votes in place of ballot papers and boxes which were used earlier in conventional voting system. 2. What are the advantages of EVM over the traditional ballot paper/ballot box system? (i) It eliminates the possibility of invalid and doubtful votes which‚ in many cases‚ are the root causes of controversies and election petitions. (ii) It makes the process of counting of votes much
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number that sequentially increases at all time‚ it is its own individual dimension. No matter how much people try to stop‚ whatever people experience‚ good or bad‚ time will continuously move with nothing bringing it to a halt. In the short story by Ray Bradbury‚ “A Sound of Thunder‚” a tour guide‚ named Travis and his company‚ Time Safari Inc. believed that they can manipulate and control time for entertainment to make money. When a man named Eckles stepped off the set path in the past and changed the
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As we all know‚ Ray Bradbury‚ Author of Fahrenheit 451‚ made many predictions as to what this day and age would be like. He was right in many cases including speed‚ entertainment‚ and the mindlessness of people. He predicted that nobody would speak more than a couple of words at a time to a certain person. That makes the people seem mindless because they don’t talk or ask questions. Ray also predicted that people would drive by places so fast that the y don’t even know what they passed. That has
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Greek machines and what there used for In Ancient Greece‚ many inventions like the pulley‚ one of the most used inventions used in Greece‚ were very helpful Greek urns Greek urns were super IMPORTant in older periods of time. There were used for storing things such as wine‚ water and the soul purpose of storing materials and food. They were also used for transporting goods and were made to we’re the urns could stack on each
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Donovan F #8 Mr. Graham Soda machine argument Having a soda machine is a great idea for a school. It is a really good idea because it help students that are dehydrated and are tired of water. This will also benefit the school by giving it a profit of about 100 to 200 dollars. All the kids are tired of just drinking water‚ juice‚ and milk. Having a soda machine at school would lead to the school having more money for different occasions. If we‚ the children‚ were to buy soda the school will
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theory that time is the fourth dimension. The Time Traveller produces a miniature time machine and makes it disappear into thin air. The next week‚ the guests return‚ to find their host stumble in‚ looking disheveled and tired. They sit down after dinner‚ and the Time Traveller begins his story. The Time Traveller had finally finished work on his time machine‚ and it rocketed him into the future. When the machine stops‚ in the year 802‚701 AD‚ he finds himself in a paradisiacal world of small humanoid
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Flotation machine is a main device to realize the flotation process. The flotation of the ores is conducted according to the hydrophilicity of the minerals in the solution.The flotation machine developed by the Hongxing Heavy Industry has efficient flotation effect‚ which contributes to the good reputation. The following is the detailed explaination to flotation machine and its methods to sort out the ore mineral. Materials grinded in the wet-type mill are concocted with the basically single-dissociated
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The Pedestrian The Pedestrian is a short story by Ray Bradbury. The theme of the short story is all about technology in which it deals with the dangers living in a society which is not only reliant on technology‚ but uses technology to control its citizens and to destroy those individuals who dare to exercise freedom of expression. At the start of the short story the writer sets the scene for the reader‚ both in time and place but also by describing the kind of society that exists in the future
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