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 36
y the process last described, the fluid is made to leap through a comparatively small interval, by the concentrated attraction exercised by a small negative ball upon the expanded surface of electric matter diffused through a large globe, the air does not become sufficiently condensed to resist it… … When the machine is in active operation, and the prime conductor insulated ; from a small knob attached to it, as at B, in the figure, the electricity will be so sent off, as by the concomitant light to exhibit the form of a luminous brush, as represented in this figure at B. For the production of…
University of Pennsylvania. Department of Medicine · Scientific apparatus and instruments -- Design and construction · Acids · Chemistry · Whirlwinds
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
