Diverse analysts have observed that despite the fact that nowadays the common trend
is connected with increasing importance of the services, a decent percentage of the GDP of the significant percentage of countries on the Earth is connected with the industry
. It is implied by the fact that, above all, this topic of economy is very likely to be an inevitable element of the existence of the mankind even in the longest predictions referred to the future. It is indicated by the fact that thanks to it we have been offered with different inventions like inter alia motorways, skyscrapers, vehicles, airplanes etc.