When was the first experimental evidence for the electromagnetic force at atomic scales found?
Quick Answer
In the late 1800s, especially with James Clerk Maxwell’s work in 1860s and Heinrich Hertz’s experiments in the 1880s. These showed electricity, magnetism, and light are connected.
The Full Story
The electromagnetic force was unified conceptually in the 1860s, when James Clerk Maxwell formulated equations describing electricity and magnetism as one field. Heinrich Hertz later confirmed electromagnetic waves experimentally in the 1880s. These results showed that light is an electromagnetic phenomenon and laid the foundation for modern physics. The force is now understood as being carried by photons in quantum theory.
Key Facts
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"Electricity, magnetism, and light turned out to be one force with a stunning history."
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