1. Roman and New York Aqueducts
... engineer was called upon. He would use a surveying tool called a chorobates to construct a line of the proper gradient from the source to the city. Next, an engineer used either a groma or dioptra for alignments. Once the line was decided on, the engineers would have to figure out how to get the water from the source to the city using covered trenches, tunnels, pressurized pipes, walls and arcades ... walking around in a wheel that pulled a rope up. The next machine was called the sheep. The purpose of this was to drive in posts. Two men would hoist a weight up the structure and then re...
- Word Count: 5087
- Approx Pages: 20
- Grade Level: High School