Rocky Mountain PBS
Our cameras went to a lot of places this year. Here are our favorite shots from 2025
Rocky Mountain PBS staff share their favorite shots of the year
Geometric Optics: Crash Course Physics #38
Explore the world of physics, motion, and energy with Dr. Shini Somara.
Geometric Optics: Crash Course Physics #38
Season 1 Episode 38 | 9m 26s | CC
Sunlight, moonlight, torchlight, and flashlight... They all come from different places, but they’re the very same thing: light! It’s what makes it possible for us to see the world around us, so it’s worth a close, hard look. For instance, how does light travel? When you flip that switch in the bathroom to brush your teeth, how does light move from the light bulb, to the mirror, and into your eyes?
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