To unify the subjects of electricity and magnetism, he made an electromagnet by wrapping a copper wire [with thin plastic insulating coating] many times around a common iron nail [ 10d , if you're big on English Units ] and attaching the wire ends to the 6 Volt battery.
(attaching the wire; ends; to the 6 Volt battery) (he; made; an electromagnet) Context(he made,List([52, 59))):(he; made an electromagnet by wrapping; a copper wire; with thin plastic insulating coating] many times around a common iron nail) (you; 're; big)
he made,List([52, 59))
attaching the wire he he you
ends made made an electromagnet by wrapping 're
to the 6 Volt battery
an electromagnet
a copper wire with thin plastic insulating coating] many times around a common iron nail
big