History
The trees remember: Sheepherders’ carvings preserved in the San Juan Mountains
As Hispanic sheepherders roamed the mountains, often alone for months at a time, they carved names, dates and drawings into the soft bark of aspen trees.
Special Relativity: Crash Course Physics #42
Explore the world of physics, motion, and energy with Dr. Shini Somara.
Special Relativity: Crash Course Physics #42
Season 1 Episode 42 | 8m 25s | CC
So we've all heard of relativity, right? But... what is relativity? And how does it relate to light? And motion? In this episode of Crash Course Physics, Shini talks to us about perspective, observation, and how relativity is REALLY weird!
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