Even ancient people engaged in hunting, found that it is much easier to carry the prey, not on his back, and putting her on some sort of sled. Later, it became clear that if the logs to use as rollers to move heavier loads.
Disc wheel, attached to the platform by a simple axis – a direct descendant of the rink. For the first time the wheel was used in Mesopotamia about 5,000 years ago. Vehicles with a bullish thrust gradually improved and spread to the Mediterranean, Europe and China. The Romans learned how to make durable carts; their excellent roads, established a quick message horse sleds. It was an important factor in governing the vast Empire.



In the distant 1960-m to year, in accordance with the doctrine of the Association of school and life, our 10-grade “B” in full force was aimed at a large aviation plant with a mysterious name “Enterprise p/2402” where we had to master one of the working professions.






