Autor(en)

Landels, J. G.:

Auflage

2. Ausgabe / 2nd Edition.

Verlag / Jahr

Berkeley, Los Angeles: University of California Press., 2000.

Format / Einband

14,0 x 2,0 x 21,0 cm, Taschenbuch / Paperback. Zahlreiche Abb. / Numerous Figs., 238 S. / p.

Sprache

Deutsch

Gewicht

ca. 270 g

ISBN

0520227824

EAN

9780520227828

Bestell-Nr

1181007

Bemerkungen

Aus der Bibliothek von Prof. Wolfgang Haase, langjährigem Herausgeber der ANRW und des International Journal of the Classical Tradition (IJCT) / From the library of Prof. Wolfgang Haase, long-time editor of ANRW and the International Journal of the Classical Tradition (IJCT) - Sehr guter Zustand, leicht bestoßen / Very good condition, slightly scuffed - Main sources for engineering in Roman antiquity: Hero of Alexandria, Vitruvius, Pliny, Frontinus. - Power and energy sources -- The sources of power available in classical antiquity were severely limited by comparison with those of the present day. Virtually all work was done by man-power or animal power, and the kind of constraint which this imposed may be seen from a simple illustration. One gallon of petrol may seem very expensive nowadays, but if used in an ordinary engine of average efficiency it will do the equivalent work of about 90 men, or of nine horses of the smallish size used in the ancient world, for one hour. Water power was used for pumping and industrial purposes, but probably not much before the first century B.c. The theoretical possibilities of steam power, hot air expansion and windmills were known, but apparently never exploited except on a very small scale, and not in useful or practical applications. ISBN 9780520227828

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EUR 18,00

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