Charles Singer et al (eds)'s A History of Technology PDF

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T h e rock there, according to Pausanias, ‘is not one continuous mass, but the stones are dug as pebbles. T h ey are hard to work, but once wrought they might grace sanctuaries o f the gods, and they are especially fitted to adorn swimming-baths and fountains’ [42]. There is a well preserved Roman granite quarry in the Odenwald (Hesse, Germany), where the Romans obtained building material for such towns as Oppenheim, Mainz, Mannheim, Treves, Wiesbaden, and Aix-la-Chapelle. Fragments o f cut stone still remain on the slopes.

Tells that one ‘Theodorus o f Samos was the first to discover how to pour [or melt] iron and make statues o f it’ [9]. Unfortunately he says nothing o f the furnaces necessary to produce the high temperature required. Cast iron figures o f animals, assigned to the seventh or western Spain, and others as far afield as Britain. In fact it was in pumpingdevices that Roman mining showed the greatest advance over that o f the Greeks. T h e most important o f these devices was the water-wheel (pp 593 IF).

II. ROMAN MINING Greek civilization passed gradually into that o f the Roman Empire. In tech­ nology there is no boundary between the two, though here and there, even in 7 F igukc 5— (Left) A series o f eight pairs o f m ater-raisit^ mheels sued by the Romans to drain copper mines at R io TintOf Spain. The mheels mere probably turned by treadndlls. ( R i ^ t ) A single mheel, part o f a Portuguese series, in elevation and plan. Diam eter 5 m, givm g a lift o f y -j m. ) century a j j . F iC U U 4.

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A History of Technology by Charles Singer et al (eds)

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