Electromagnets

An electromagnet was created by insulating an iron bar and winding coiled wire around it. When electricity was introduced, it generated a strong magnetic field. His device would lift 9 pounds —twenty times its own weight while the current was running.
William Sturgeon England 1823
Electromagnets

An electromagnet was created by insulating an iron bar and winding coiled wire around it. When electricity was introduced, it generated a strong magnetic field. His device would lift 9 pounds —twenty times its own weight while the current was running.