The Conversation

Let there be light! Celebrating the theory of electromagnetism

Author: The Conversation

The many colours of visible light just part of what James Clerk Maxwell's theory was to explain.Flickr/laura peta, CC BY-NC

It’s hard to imagine life without mobile phones, radio and television. Yet the discovery of the electromagnetic waves that underpin such technologies grew out of an abstract theory that’s 150 years old.

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