Tour of the EMS 01 - Introduction

Thank you

Ya thanks guys it really helps with homework.

A good primer and thanks, NASA, for posting it.

Good to know

What's the song?

it's kinda boring

Very cool animations! I just wish it would have had a better resolution.

This is the best introduction of EM waves that I've seen. Increadibly visual and explanatory. Thank you so much!!!

Electromagnetic energy does not propagate through a vacuum as waves.  They propagate as photons.

...