现在我们一般用火力和水力来发电。利用原子能发电是最新的科学技术成就,苏联已经建成了世界上第一个原子能发电站。我们还可以利用风来发电,小型的风力发电站在苏联有些地方已经实现了,苏联还在研究建设大型的风力发电站。至于在阳光充足的地方,还可以直接利用太阳光的热力来发电。它的原理是利用太阳光的热力来使水变成蒸汽,再用蒸汽来推动发电机。在苏联目前已经有了很多直接利用太阳能的装置,如阳光温床、阳光浴室和阳光热水器等。在本期封面上画出了可以用太阳能来发电的设备,它的主要部分是一个像碟子一样的大镜子,有着极光亮的表面,利用反射的作用把太阳光源聚集在—点——焦点上,使这一点的温度达到可以熔化金属的程度。如果把锅炉 Now we generally use firepower and water power to generate electricity. The use of atomic power to produce electricity is the latest scientific and technological achievement. The Soviet Union has built the world’s first atomic power station. We can also use the wind to generate electricity. Small wind power stations have been implemented in some parts of the Soviet Union, and the Soviet Union is still studying the construction of large-scale wind power stations. As for the sunny places, it is also possible to directly use the heat of sunlight to generate electricity. Its principle is to use the heat of sunlight to turn water into steam, and then use steam to propel the generator. In the Soviet Union there are already many devices that directly use solar energy, such as hotbeds for sunlight, sun baths, and solar water heaters. On the cover of this issue is a device that can be used to generate electricity from solar energy. Its main part is a large mirror like a dish, with a very bright surface, the use of reflection to gather the sun light source - point - focus To make this temperature reach the point where the metal can be melted. If you put the boiler