Inventors at work, with chapters on discovery (1906)
Iles, George, 1852-1942 · New York, Doubleday, Page & company · leaf 432
attracting public attention by their econ-omy. A pot is filled with, let us say, the materials for soup, it isbrought to a boil, and then placed in a chest thickly clad with anon-conducting coat of felt or even of hay, as illustrated on page189. In an hour or so a capital soup is found to have… … Copyright, Pach Bros., New York. THOMAS ALVA EDISON, 1906.Orange, New Jersey. OBSTACLES TO HEAT 375 the passing of heat may be employed either to keep it in or keep itout. For years inventors busied themselves in finding non-con-ductors wherewith to cover steam-pipes and steam-boilers. To-day, in…
Inventions · Inventors
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