[N326004], Technical Note, Ezra Torrance Gilliland, August 26th, 1886
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Title
[N326004], Technical Note, Ezra Torrance Gilliland, August 26th, 1886
Editor's Notes
continuation of note from 8/25: "Continue Cocoa Carbon Experiments-- Comparative weight of anthracite carbon & cocoa carbon. The cocoa weight a little more than one half as much-- Macaroni carbon weights about 1/2 as much as as cocoa and talks about the same both cocoa & macaroni talk loud but do not articulate as well as anthracite. Treated the macaroni carbon with sulphuric acid and washed and cleaned it, which produced a slight improvement-- not equal to the standard carbon-- Tried experiment of shunting primary & secondary coil with 6 large leyden jars no perceptible imrprovement-- Shunted coil with condenser, no improvement= Tried Zinc dust no results-- resistance very high= All of the above Experiments have been tried on short circuit-- now preparing artificial line upon which experiments will be tried hereafter-- Tellurium-- talks nearly as well as standard carbon it has low resistance Is about 3 1/2 times as heavy as carbon-- This is by far the best talking sustance we have tried yet and comes the nearest to standard carbon will make further experiments with other apparatus--
Author
Mentioned
Date
1886-08-26
Type
Subject
Folder/Volume ID
N326-F
Microfilm ID
43:813
Document ID
N326004
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University