GRST 321 Lecture 5: September 22

• School: University of Calgary
• Department: Greek and Roman Studies
• Course: GRST 321
• Professor: Lesley Bolton

Document Summary

Sources of energy: humans: manpower either unaided or using other sources of energy or mechanical devices, animals: domesticated animals. Some evidence of water wheels used to transport water into a channel, but very few instances of a water wheel being used as a machine to power a gear system: wind: very few uses of wind power. There are seasonal winds in the mediterranean but they are not reliable enough for a conscious use of power: hero"s (cid:449)i(cid:374)d(cid:373)ill (cid:894)a(cid:374)e(cid:373)ourio(cid:374)(cid:895): wi(cid:374)d orga(cid:374). Windmills are more medieval (later in time: fuels: burning brushwood wood (organic fuel) as cooking/heating/lighting purposes. Also used dried animal dung (these used in a home setting). Small use of olive oil for oil lamp lighting: little use of coal although they knew about it, charcoal was used for bigger productions outside of the home setting. The so-called baghdad battery a ceramic jar about a handspan tall, a cylinder of copper and an iron rod.