William Sturgeon made an electromagnet in 1825 by passing a current through a bare wire wrapped around an iron rod.
(a bare wire; wrapped; around an iron rod) (William Sturgeon; made; an electromagnet; T:in 1825) Context(William Sturgeon made,List([0, 21))):(William Sturgeon; made by passing; a current; through a bare wire)
William Sturgeon made,List([0, 21))
a bare wire William Sturgeon William Sturgeon
wrapped made made by passing
around an iron rod
an electromagnet T:in 1825
a current through a bare wire