Titlebook: Ancient Engineers‘ Inventions; Precursors of the Pr Cesare Rossi,Flavio Russo Book 2017Latest edition Springer International Publishing Swi

道學(xué)氣

Measuring Time,ction of the water clock by Ctesibius is shown. The latter had a very interesting particularity: it could automatically adjust, in each of the days of the year, the length of the hour. In fact, except at the equinoxes, the length of the single hour for the Greeks and Romans was different from a day

貪婪地吃

Antagonist

Mangle

強(qiáng)制令

Secondary Motors,ors were essentially based on devices in which the weight was the moving force or motors in which the elastic energy was stored. Examples of the first are the cranes, the thread wheel and probably the siege towers; while elastic motors, instead were represented by almost all the ancient throwing mac

錯(cuò)事

為現(xiàn)場

Measuring Distance and Slope,heir simplicity, were surprisingly accurate; in fact, they permitted to realize the surprising roads, bridges, tunnels, aqueducts, buildings etc. of the antiquity. Then the astrolabe is also briefly described. Some examples of how did these devices work are also presented.

得意牛

Measuring Time,ction of the water clock by Ctesibius is shown. The latter had a very interesting particularity: it could automatically adjust, in each of the days of the year, the length of the hour. In fact, except at the equinoxes, the length of the single hour for the Greeks and Romans was different from a day to the other and from the day to the night.

解脫

The Production of Water,g sieges without any apparent source of fresh water. Moreover, these device are very simple to build and do not need any external source of energy, so they could be used even in the present days in emerging countries or in case of natural disasters.

戰(zhàn)勝