Everyday the sun rises and sends out its rays. These lights of the sun are necessary in humans' life. It is know that life depends on the water which mostly comes from rains. In fact, the sun is one of the main causes of the rains in the water cycle. Over the history, there are many examples of using the sun as a source of energy. The old cultures discovered that fact and used the sun as a way to ignite wood. This way relied on converting the sunlight into one ray by using plates of glasses. Then, in the early 1900's, the steam engines had its power from the solar energy collector that produced the heat to evaporate the steam. During last century, the "efficient solar boiler invented by Charles Greeley Abbott was great achievement in the technology of solar energy ("Solar Energy. Latent). Recently, the necessity of the sun arises from Its energy to be an alternative for regular defective energies. Solar energy can be used in many ways: to supply heat, lighting, mechanical power and electricity and many other stuff. Meanwhile, The idea of using the solar energy as a main source of energy has advantages and disadvantages.
First of all, the solar energy has to be collected in order to convert this energy into different types of energy. For that reason, Eric Brown insists that "[m]ethods of collecting and storing solar energy vary depending on the uses planned for the solar generator (Brown). In other words, there are many different ways to gather solar energy. However, the need of this energy illustrates the best way (Brown). Mainly, "flat-plate collectors, focusing collectors, and passive collectors are the three methods of capturing solar energy (Brown).
The common method used to collect solar power is the flat-plat collector. The plates are designed to let the light of the sun hits their surfaces all the time in order to gather maximum amount of energy during the day. The other method, which is focusing collecto