How to make inventions; or, Inventing as a science and an art (1893)
Thompson, Edward P · New York, D. Van Nostrand co · leaf 148
e,steam, air and gas-engines, artificial icemachine, bleaching, dyeing, thermostat,electric meter, telescope, microscope, pho-tography, &c., the facts employed were atthe time well known to the educatedpublic.Many ideas forming the foundation of purely kineticmechanical inventions are also… … ^ 134 against the rules of the college, he was left without employment,so that his wife was obliged to take up her former employmentof knitting stockings. After vain attempts in getting employ-ment, and after often watching the process of knitting, he recog-nized how slow the process, and wondered…
Inventions
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