风力发电观后感400字左右
The Prospect of Wind Power Generation As the traditional energy, such as fossil energy, getting less and less, Current Energy Issues get increasingly attention now. In consequence, the development of new energy becomes more and more urgent. We know, because of the difficulties of technology and the potential danger of the nuclear power, nuclear power is not adapted to most places, what’s more, it requires a lot on resource, which can hardly be massively collected on the earth. Therefore, it cannot be well developed currently. And as for hydrogen power, its preparation is not easy as well. Now human being has not found a proper way to create hydrogen depends on low energy and of easy raw materials. So to conclude, there massive new energy resources, but most of them are too regional that cannot be widely applied; or too assuming on cost, which are the barriers of its application. So now we turn to a kind of clean energy which has a positive prospect—Wind Power Generation, which is to change the easy-got and clean primary energy to a secondary energy resources—electricity, which is very convenient to transportation and application. It had been used to draw water for irrigation or mill flour. But now, it will be used for the public. The advantages of wind power generation are listed as following: 1. Its containing quantity is marvelous. The global wind power is approximately 2.74×109MW, of which 2×107MW is available. Which is more than ten times larger the total usable hydropower. 2. The resource spreads very widely so that it will not rely on some particular region like hydropower which must be built by a 3. As a clean renewable energy resource, when it is used, there will be no any pollution to our environment and it won’t die away before the sun. It is easy to understand, because what it use to create electricity is wind: after the fans driven by wind are speed up by the booster engine, the mechanic energy will be translated to electricity by electric generators. Therefore, no pollution has been produced. 4. The devices needed are very flexible, so that they can be assembled more easily, timesaving, and cost-efficient as well. What is used to develop wind power is called wind generating set, which consists of wind turbines(including tail rudder), electric generator and pylon, all of which are easy to produce and assemble. 5. In recent time, either in the world or our territory, the development of wind energy is very fast, which means the basement of the technology is generally built, the massive application is on ahead. As a matter of fact, there actually are some disadvantages about the new energy. Such as much occupation on the room, a little noise, and instability as well. But when taking the large territory and plentiful wind power into account, despite of these negative dimensions, it’s still very feasible to development this kind of new power. As the worldwide environment getting worse and worse as a result of human being’s activities, now it’s our time to develop a more environmentally-friendly way to get our necessary everyday energy. To solve the energy problem and keep a clean world as well, wind power resource is a proper solution we could adopt.
求去德国读博士的条件，本人在普通大学 就读 风力发电方向的研究生。
不一定是山顶上，而是设置在风场里，如果区域内有山，为了防止窝风，就应当建设在山顶或者风力不受山峰影响的区域内。
动力失电读后感怎么写
我知道了电流就是电子在电线里流动；电压就是电流的推力，电流通过电线的推力越大，电压就越高；我知道了闪电就是一种放电现象，当大量带电微粒聚集到一起的时候，便跳起来，那就是一道闪电。
通过读书，我还懂得了一些用电安全的小常识。
比如，不用手或导电物（如铁丝、钉子、别针等金属制品）去接触、探试电源插座内部；不用湿手触摸电器，不用湿布擦拭电器；发现有人触电要及时关断电源，或者用干燥的木棍等物将触电者与带电的电器分开，不要用手去直接救人；在紧急情况下关断总电源等等。
我还了解了一些符合环保的发电方法。
有太阳能发电、地热发电、水能发电、风力发电和潮汐发电。
但是人类目前还不能从这些能源中得到我们所需要的足够的能量，我希望人类能够早一点发明出更好的、无污染的方法来获取能源。
在我们的生活中，处处离不开电，但是现在人们节约用电的意识却越来越淡薄。
节约用电人人有责。
去公电局参观的读后感
用右手定则，四指指向的使电流方向，也就是从低电势指向高电势（因为在电源内部电流由低到高，外部是由高到低）
