File:The fireside university of modern invention, discovery, industry and art for home circle study and entertainment (1902) (14592348807).jpg

Identifier: firesideuniversi01mcgo (find matches)
Title: The fireside university of modern invention, discovery, industry and art for home circle study and entertainment
Year: 1902 (1900s)
Authors: McGovern, John. (from old catalog)
Subjects: Science
Publisher: Chicago, Union pub. house
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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inventorof the steam engine; and, finally, of Professor Joseph Henry, ofPrinceton College, New Jersey, who invented the first electricalengine or machine, and died in 1878. After concluding thischapter, you would do well to return and review these two par-agraphs. Can these measures be clearly and briefly defined in con/wonlanguage? No. Excepting that the coulomb, or unit of quantity, is legallydeclared to be the quantity of electricity transferred by a cur-rent of one ampere in one second of time. 22 THE FIRESIDE UNIVERSITY. Proceed now to the useful features of the Electric Age. The first and perhaps the most important invention was theElectric Telegraph. Benjamin Franklin sent a kite into theskies and obtained the electric spark from the key at the endof the wet string immediately after a thunder-clap. It wasthus shown that Electricity acted through the wet kite-string,Franklins discovery created a sensation at Paris, where he hadmany political and scientific friends and admirers.
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Fig. I. MORSES FIRST TELEGRAPH. ELECTRICITY. 23 Who was Morse? Samuel Finley Breece Morse was a portrait-painter, and Pres-ident of the New York National Academy. But at Yale Collegehe had attended the scientific lectures of Professor Silliman, whohad been sent to Europe by the Puritans to learn science with-out departing from the colonial religion. Morse was returningfrom Europe a second time when he heard on shipboard thatthe scientists of Paris had sent a spark of Electricity througha wire from magnet to magnet. It is said that, on hearing thisnews, and understanding that the armature of the magnet couldbe pulled back and forth across the space where the sparkleaped, Morse went into his stateroom and invented the tele-graphic key or lever and dot-dash-space system of signals bywhich the world for fifty years transmitted its news. What did Morse do next ? Arriving in New York he made his machines,—for the dotsand dashes were to be impressed on strips of paper, as it wasnot then kn

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