Induction coils : how to make, use, and repair them including Ruhmkorff, Tesla, and medical coils, Roentgen radiography, wireless telegraphy, and practical information on primary and secondary battery (1901)
Schneider, Norman H. (Norman Hugh) · New York : Spon & Chamberlain ; London : E. & F.N. Spon · leaf 168
discharges invacuo, a description ofa few forms of simple mer-curial air pumps will beserviceable. Fig. 42 : If a glass tube,F, stopped at one end, 3feet long or over, be filledwith mercury and theopen end immersed in avessel of mercury, T, thecolumn of metal in thetube will sink until it at-tains… … Fjg. 42. 142 Currents in Vacuo. years ago, and the gradual evolution ofthe mercurial air-pump based on this re-sult can be followed in the articles on themercurial air-pump by Silvanus P. Thomp-son, read before the Society of Arts, Eng-land, some years ago. Geissler, the first manufacturer of the…
Induction coils · Radiography · X-rays
Internet Archive · Medical Heritage Library · Public Domain Mark 1.0. Free to use for anything.
