This YouTube video explains how telescopes work, and describes various types of telescopes.
This is the sixth video of the Crash Course – Astronomy series, hosted by Dr. Phil Plait. This video describes the basic principles of telescopes and how varieties of telescope designs function. Also included is a basic guide to purchasing telescopes for personal use. From the video description:
Table of Contents:
- How Telescopes Work 1:07
- Refractors vs Reflectors 2:50
- Technology and the Light Spectrum 7:45