Science & Environment
This wetland harnesses hot springs for year-round activity
The Pagosa Springs Wetland is home to 193 species of bird. Thanks to warmth of hot springs, you can hear birdsongs year round.
Want updates about stories from across Colorado and your favorite PBS programs?
Sign up for our newsletterApologies for the inconvenience...
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?