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World's longest over-water bridge, the 41.58km-long Qingdao Haiwan Bridge, opens to traffic in China's Qingdao on the last day of June. The bridge connects the city of Qingdao with Hongdao in Chengyang District as well as the suburban Huangdao District across the waters of the northern a part of Jiaozhou Bay in Shandong Province.
A generator is an electrical machine which converts mechanical form of energy into electrical form. Generator works on the principle that whenever a conductor moves in a magnetic field, an emf gets induced in the conductor. This principle is called as generator action.
A motor is an electrical machine which converts electrical energy into mechanical energy. When a current carrying conductor is placed in a magnetic field, the conductor experiences a mechanical force and this is the principle behind motoring action.
Using lights for security can be as little as having motion detection lights installed neared your doorways and so on the sides of your house. Motion detection lights will throw light onto anybody approaching your house. Most people have lights setup near their entryways, so it would likely certainly be a couple of switching out the specific light system for the wall.
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