[N314131], Technical Note, Thomas Alva Edison, March 23rd, 1886

Item

Abstract

"Make a set of long magnets of 1/2 inch Norway iron of following lenghts 1, 2, 3, 4, 5, 6 8 12 20 40 feet in length wind evenly after covering with paper No 20 well insulated wire from end to end Then magnetize with same amperes in each experiment and move an astatic needle [unclear text] with or without director magnet at different distances & make curves, opening & closing the long mag ckt-- I want to get the projecting power for the lines of force of very long magnets-- EMF of magnetism analogous to Electricity at same time get the charging and discharging times of these magnets (drawing follows)

Date

1886-03-23

Decade

1880-1889

Identifier

N314131

Folder Set

N314

Title

[N314131], Technical Note, Thomas Alva Edison, March 23rd, 1886

Microfilm ID

42:878

Publisher

Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University

Item sets