One of the inventions that have brought humanity forward is the wheel.
It is the key to the technical and cultural development of mankind.
Without wheels we would get nowhere – in the true sense of the word. And it has been like that for about 5,500 years.
Whereas the wheel was very heavy and, in addition, simply constructed at the beginning of its development because it was entirely made of massive wood, it is a complex building component or machine element with a wide range of applications today.