The development of science and technology is not only an integral part of advancing human civilization but is also, in a great degree, a formative part of its progress. The discovery of electrical energy started a new era of the human progress. A need to convert energy of different sources into electrical energy has arisen. Every day we witness more and more significant achievements where natural resources are used, for example in acecraft. Recently, there has been rapid development of information and communication technologies connected to the possibility of processing a large quantity of data with high speed, and of data transfer around the Earth and into space. Furthermore, we observe development in the field of material science a result of new treatment technologies.