This is a recording of a recent live class I did with an entire high school astronomy class. I've included it here so you can participate and learn, too!
Light is energy that can travel through space. How much energy light has determines what kind of wave it is. It can be visible light, x-ray, radio, microwave, gamma or ultraviolet. The electromagnetic spectrum shows the different energies of light and how the energy relates to different frequencies, and that's exactly what we're going to cover in class. We're going to talk about light, what it is, how it moves, and it's generated, and learn how astronomers study the differences in light to tell a star's atmosphere from millions of miles away.
I usually give this presentation at sunset during my live workshops, so I inserted slides along with my talk so you could see the pictures better. This video below is long, so I highly recommend doing this with friends and a big bowl of popcorn. Ready?
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