

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?
Related stories
Science & Environment
Annual Colorado forest health report shows the toll of climate change, pests
The Colorado State Forest Service has been studying the health of forests across the state for a decade. Here’s what they found this year.
Community Action
Scenes from Colorado's biggest Pride celebration
With three main events, the festival, the 5K and the parade, the 51-year-old event gathers around 500,000 people annually to celebrate the LGBTQ+ community.
| Peter Vo
Health & Wellness
Thousands of Coloradans could lose Medicaid if federal spending bill passes
Thousands of Coloradans will lose health insurance if proposed federal Medicaid cuts are passed, and clinics with high volumes of Medicaid clients may be forced to close or limit services.
| Zack Newman