[N317225], Technical Note, Thomas Alva Edison, April 17th, 1886


View document with UniversalViewer   → View document on Archive.org  → Re-use this digital object via a IIIF manifest


[N317225], Technical Note, Thomas Alva Edison, April 17th, 1886

Editor's Notes

p. 225 drawing "Elec RR Work up idea of accelerating bobbin to work a centrifugal clutch running in [device?]"; pp. 227- (see N319169) p. 227 XYZ drawings and descriptions; p. 229 "XYZ If Electricity pasing in a wire is given off as heat, Then a wire under some kind of polar environment give off electricity when the same is conducted along it from hight to low temperature Applcn of heat to a wire & allowing it to conduct to & from a Magnetic field ought to give electricity"; p. 231 drawing "XYZ wind wire also sheet both direction-- Rubber & other cylinder"; p. 233 "Fundamental Magnetic Expmt (drawing) Determine accurately relative EMF with the poles at diferent distances in 1/1000 plot cuves-- also substitute magnets with exactly same poles but dif lenghts & make cureves-- also curves of EMF at diferent distances apart with dif degrees of saturation also Reg Mag & Cast iron pole pieces Try pole pieces dif kinds of shapes as to ends etc"; p. 235 drawing "Fundamental Magtc Expmt Magnetic Bridge"; 237-39 drawing of earth rotating around sun "The earth revolving around the sun cut the lines of force so the current tends to pass around both sides of it This would neutralize & give no effect were it not that one side of the earth is heated & thus gives direction fo the current around the equator belt. This makes the magnetic poles and the electric current & consequent magnetism causes the attraction to the sun the orbit of the earth is the point where the tendency to go off in a straight line is balanced exactly by the mutual attraction of the electric current magnet of the earth & magnet of the sun""



Folder/Volume ID


Microfilm ID


Document ID



Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
Download CSV | JSON