Illustration showing Electromagnet, powerful enough
Illustration showing Electromagnet, powerful enough to lift about 220kg. A horseshoe of soft iron is wound with silk-covered copper wire and fed by a voltaic battery (copper/ zinc/acid) 1835
Picture No
13912974
Media ID
48439303
Size
3921px x 5349px
(5.4MB)
Credit
World History Archive / Mary Evans Picture Library
Source
World History Archive





























