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1.According to paragraph 1, both wind energy and the rotation of Earth contribute to the creation of A. waves B. oceanic current C. a gravitational attraction between earth and the sun and the moon D. tides 你的答案: 正确答案:B
The invention relates to a wave power plant (6) for generating electrical energy from the waves (7) of an ocean (8). In order to convert the kinetic energy of the waves into electrical energy, it is proposed that at least one Archimedes' screw (1) is provided in a horizontal or incli...
"Have you ever been out on a boat and felt it lifted up by a wave? Or have you jumped in the water and felt the rush of energy as waves came over you?" asked Jamie Taylor of the Wave Energy Group at the University of Edinburgh. "There is certainly a lot of energy in waves " ...
generated at dams or other places where water descends from a height like coasts with a high tides difference .hydroelectricity is a renewable energy source ,since the water that flows in rivers has come from precipitation such as rain or snow and waves in the sea ,or even ocean ,are moon...
The feeling I get when I'm surfing across that , becoming one with the , is like I'm weightless. The one thing I can from surfing and not any other sport is endless challenge. You can never be the "best surfer" because the ocean an uncountable variety of waves that nobody can ...
Electrical devices(仪器) could soon use power made by human energy. British scientist Max Donelan and other scientists in Canada and the United States have developed an experimental device that produces electricity from the physical movement of a person walking. ...
scientists have been working to turn the sun’s energy into electricity by using solar cells (太阳能电池). The problem is, solar cells are very expensive. Another way to make electricity is to use nuclear energy. It has been used for more than 50 years. Today about 10 percent of all th...
Disclosed is a converter for converting heat energy of solar origin stored in ocean waters and in the atmosphere into electrical energy. The converter proposed by this invention is based on a special organic thermodynamic cycle and a hydraulic loop. The cycle uses propane as the working fluid. ...