Lecture #3 – Canals, Raftsmen, and Snakeheads 1. Was moving goods over a macadam road cheaper than on water?
It was cheaper and faster to move goods over water due to roads that were uneven in quality. 2. Can a river or lake be part of a canal?
Absolutely. Rivers could be improved with weirs, flash locks, and levees. Canals may include cuttings as well as improved stretches of river. 3. In what U.S. state do we find the first macadam road?
Maryland, in 1823 on the Baltimore to Ohio route. 4. In what Canadian province do we find the first macadam road?
Quebec. St. Jean to Laprairie on the St. Lawrence in 1832. 5. Name one Mediterranean country where a canal was built in Antiquity?
Italy. …show more content…
Why were canoes still used for river transportation in the 19th century?
They were cheap and relatively fast. 16. Name one limitation of the iceboat.
It only worked in the winter when it was sufficiently cold enough. 17. What was the main advantage of the current-driven machine in Paris?
It was able to pull boats upstream. 18. How old (at least) is the concept of the horseboat?
Animal driven propulsion was depicted in the 4th century. 19. What are the main advantages of horseboats?
The treadmill horseboat was one of the most efficient early advances and stayed is use the longest. 20. What are the main drawbacks of horseboats?
The horses would suffer from a type of vertigo when capstans were used. 21. How old (at least) is the treadwheel?
1867 – Bolton, Quebec. 22. If treadmills were so efficient, why did horseboats disappear? 23. What was new about the first Boulton and Watt steam engine?
In 1769 Watt patented a single acting steam engine with condenser. 24. What was new about the second Boulton and Watt steam engine?
In 1782 Boulton and Watt patented the first double acting steam engine, creating a vacuum both above and below the piston. This design also introduced parallel motion linkage between the piston rod and balance