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Read e-book online Great Inventors And Their Inventions PDF

By Frank P. Bachman

Twelve tales of serious innovations, grouped lower than innovations of steam and electrical strength, innovations of manufacture and creation, and in ventions of printing and conversation. the ultimate bankruptcy introduces the well-known inventors of the early 20th century. the tale of every invention is interwoven with that of the lifetime of its inventor. via those tales the reader learns how giant issues are led to, and at the features of brain and center which make for achievement. appropriate for a long time 10 to fourteen.

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Six paddles entered the water, while six came out. Fitch had great difficulty in obtaining the money to build the boat, and even after it was built the boiler had to be made larger. Finally, after much delay and anxiety, all was ready for a public trial. This took place at Philadelphia. Men like Washington, Jefferson, and Franklin came to see the new wonder. It was marvelous to see a boat propelled by steam, but the speed was only three or four miles an hour, so there was no great enthusiasm over the steam oar boat.

Nor did these crowds take kindly to the idea of a steamboat; they even went so far as to try to destroy it. Neither did the owners of the sailboats on the East River like the idea, so when they were passing by in their sloops they would bump into the Clermont. To protect the boat, it became necessary for Fulton to hire men to watch her both by day and by night. No one had any faith in the success of the venture. When, in 1806, Livingston and Fulton offered to take Stevens into partnership with them, he refused, and said, "Mr.

Experiments were made with propellers which opened and shut like a duck's foot, with side paddle wheels, stern paddle wheels, side oars, screws, and paddles fastened to an endless chain passing over two wheels. Fulton was convinced that side paddle wheels were the best. He learned also that the propelling surface of the different paddles combined should be twice the exposed surface of the bow. In addition, he worked out a table to show the power that was needed to move boats of different sizes at different speeds.

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