At present electronic has an important and very key role. Everybody possesses plenty electronics gadgets at home and want to use them all the time.

Working in the building industry is known to be a relatively risky job. It is so because of several reasons. First of all, this kind employees use machines. Inappropriate use of some of them cannot make greater harm to their health. However, still regards plenty of them, like so called mining equipment, the probability of miscellaneous injuries is substantially bigger. Another factor that may have influence to problems of the employees is that they often work on quite great heights.