Ritchie also made improvements on existing electromagnetic devices by having the permanent magnets remain fixed and the electromagnets rotate.
(the electromagnets; rotate; ) (the permanent magnets; fixed; ) (Ritchie; made; improvements on existing electromagnetic devices) Context(Ritchie made,List([0, 17))):(Ritchie; made by having; the permanent magnets remain fixed and the electromagnets rotate) Context(Ritchie made by having,List([0, 76))):(the permanent magnets; remain; fixed)
Ritchie made,List([0, 17)) Ritchie made by having,List([0, 76))
the electromagnets the permanent magnets Ritchie Ritchie the permanent magnets
rotate fixed made made by having remain
improvements on existing electromagnetic devices
the permanent magnets remain fixed and the electromagnets rotate
fixed