HISTORY The name of the city of bath(Bath), which is located in the southwest of great Britain in the bath. It's very simple, the fact is that in bath there are medicinal hot thermal springs, which in the beginning of our era was chosen by the ancient Romans. Not just that they have chosen and built sauna, tech in those days sauna complex, if it can be called...
A little physics. Shown here is the stone block from which was built the complex and the way it moves
For clarity, shows the two layout. Far left - a straight lever, the lever which was used by the Romans to facilitate the effort. You can try to lift both. For the same unit weight, feel a significant difference in the effort
It shows how clever the Romans fastened the unit to the lift. First he made a hole in the block, then alternately inserted three module cone mount. Average, played the role of spacers