n Tucker presented a paper deal- suggested by Salet, is not em- ployed in these observations. ing with "The Relative Ef- Salet shows that, by this use of ficiency of the Arc and Resist- ance Furnace for the Manufac- the Nicol, the power of a tele- ture of Calcium Carbide." Cal- scope may sometimes… … to be used with the two types daylight has not hitherto been The man between the talkers cannot hear the conversation of electric furnace employed practised or even proposed.—■ were also given. Cosmos. SOME ACOUSTIC EXPERIMENTS,
Cement · Machine · Color · Comet · Wright · Patents · Scientific American · Portland cement · Full particulars · American supplement · Inches long · Orville wright · Reinforced concrete · Triple action · Average speed · American supplements
Internet Archive · Public domain (published before 1931). Free to use for anything.
