GRST 321 Lecture : Energy and Machinery

• School: University of Calgary
• Department: Greek and Roman Studies
• Course: GRST 321
• Professor: John William Humphrey

Document Summary

Animals: more energy and strength than humans. Humans: more precise, intelligent, water, wind, less common due to the lack of year-round rivers in the mediterranean, depicted by hero"s windmill, not really used until medieval era, no real implementation before 10th century. Heat (fuels: brushwood, dried animal dung, heating houses, firing pottery, etc, knew about and used coal, but not very often, not great coal in mediterranean. Very few methods to store energy no batteries or electricity storage. One example of ancient storage is the catapult (tormentum) Inclined plane: gives mechanical advantage horizontal force applied to a vertical plane, wedge, screw (plane around a central shaft) Roller: such as used in the pyramids.