Experimental observations, and improvements in apparatus and manipulation : with theoretical suggestions respecting the causes of tornadoes, falling stars, and the Aurora borealis (1836)
Hare, Robert, 1781-1858 · Philadelphia, Printed by James Kay, Jun. & Brother · leaf 34
22 DESCRIPTION OF AN ELECTRICAL MACHINE, … cited under circumstances the reverse of those just mentioned. They are represented as simultaneous, but, with the same machine, can of course, only be obtained in succession. In no respect do the phenomena of mechanical electricity appear more favourable to the Franklinian theory, and more…
University of Pennsylvania. Department of Medicine · Scientific apparatus and instruments -- Design and construction · Acids · Chemistry · Whirlwinds
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