If sound waves travel by pushing particles back and forth, then how exactly do electromagnetic/radio waves travel through the vacuum of space and dense matter? Are they emitting… stuff? Or is there some… stuff even in the empty space that they push?
In: Physics
Electricity makes magnetisim. Magnetisim makes electricity. Light is those two dancing back and forth hundreds trillions of times a second. When they dance slower, they have less energy and are infrared or radio. When they dance faster, they have more energy and are ultraviolet or x rays.
You can prove there’s no “thing” they’re vibrating because the speed of light is exactly the same in all directions no matter how fast you’re moving.
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