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.
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Explore the world of physics, motion, and energy with Dr. Shini Somara.
AC Circuits: Crash Course Physics #36
Season 1 Episode 36 | 9m 53s | CC
We've talked about AC Circuits, but now it's time to delve into the world of AC Circuits (or Alternating Currents). We’ve talked about how they change voltage, which helps transmit electricity over long distances, but there’s so much more to the physics of AC circuitry.