While there’s a bit more to it, in short, the sky appears blue because of the scattering of sunlight by the atmosphere.
You can find key notes from this video lecture on the human brain from the course materials here.
What is an analog computer and how is it different than a digital computer? The latter is based on numbers, not physical movement.
Video Transcript of the video by Chad Orzel: The Heisenberg Uncertainty Principle is one of a handful of ideas from quantum physics to expand into general pop culture. It says that you can never simultaneously know the exact position and the exact speed of an object and shows up as a metaphor in everything from…