From StarTalk.

In this episode, Neil deGrasse Tyson, joined by co-host Chuck Nice, talks with physicist Sean Carroll about the concept of invisible fields in physics—especially electric and magnetic fields. They explore how scientists moved from Newton’s mysterious “action at a distance” to Faraday’s intuitive “lines of force,” and finally to Maxwell’s mathematical description of electromagnetic fields.
The main idea: Even though we cannot see electric or magnetic fields, overwhelming experimental evidence proves they are real—and they explain nearly everything in our everyday technological world.

From ‘The Complex Universe, with Sean Carroll’: https://youtu.be/041-nlqj7dM?si=RuoQyf8-fQfb9Qp-

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