ECON 3R03 Lecture Notes - Richard Trevithick, Barometer, Super Slow
25 Mar 2013
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Scientific knowledge does not automatically lead to invention. Turning a potentially good idea into a practical invention requires time, effort and money. There must be an economic incentive to justify bearing these costs. Some people spent a lot of money and hoped to get profit back. Machinery is cheaper in england and therefore did not require much labour, reducing costs. Galileo discovered that a suction pump could not raise water more than about 9 meters. A suction pump creates a vacuum, partially fills the pump and water gets pulled up. A suction pump operates by creating a vacuum into which the water is drawn because, according to. The mystery was why the water stopped rising while a vacuum remained. Galileo was interested in this issue and confused as well, so he suggested the question to his secretary, evangelista torricelli, and started working on an explanation.
