Don’t waves need a medium to travel through? Isn’t space just essentially empty? I know they’re electromagnetic waves, but what does that mean essentially?
Edit: Thanks for the response guys. From your response I’ve realised there’s no way to explain to a 5 year old how light works!
In: Physics
Light is MODELED as a wave, sometimes. That means we pretend it’s a wave in certain situations and the math works out so that we can make certain predictions. But it is not a wave like water waves, and therefore doesn’t need a medium. In most visualizations, the EM wave is waving itself.
Latest Answers