On this day, 1820, danish scientist Hans Christian
Ørsted is the first to identify electromagnetism, when he observes a compass
needle.
He
showed by experiment that an electric current flowing through a wire could move
a nearby magnet. The discovery of electromagnetism set the stage for the
eventual development of our modern technology-based world. Oersted also
discovered the chemical compound piperine and achieved the first isolation of
the element aluminum.
The
British Royal Society awarded Oersted the 1820 Copley Medal, the greatest prize
in science, for his discovery of electromagnetism.
More Information: https://www.britannica.com/biography/Hans-Christian-Orsted
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