ned from a study of an hydraulic analogy.Figs. 5 and 6 are comparative from the electrical and hy-draulic standpoint. In Fig. 5 the resistance r correspondsto the leaky portion of the plug caused by a sooty depositor a leaky insulator. In Fig. 6 a pipe of small cro.ss sectionr leading from the main… … Fig. 1 — Indicator diagrams forsingle cylinder engine. The dif-ference in. the two cards was ef-fected by changing the characterof the spark the result that the pressure may not become large enoughto break the diaphragm. In the electrical case, the voltagebuilds up but current is constantly passing…
Automobiles · Aeronautics
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![An illustration from The Antiquarian [serial] (1897)](https://img.insideoutlibrary.com/img/200/ia-antiquarianseria01colu-231-118.webp)
