How Do Telescopes Work Handout

This handout is designed to be printed double-sided, and has two handouts per page. On one side is a brief comparison of refracting, reflecting, catadioptric, and radio telescopes. On the other side is a description of the purpose of telescopes.

The file is available in both MS Word and PDF formats.

Crash Course – Astronomy – 24: Light

This is the twenty fourth video of the Crash Course – Astronomy series, hosted by Dr. Phil Plait. This video explains how astronomers use light to observe and understand everything in the universe around us.

From the video description:

Table of Contents:

  • Light is a Form of Energy 0:39
  • Wavelength Tells Us Its Energy and Color 0:59
  • Spectroscopy 7:28

Crash Course – Astronomy – 6: Telescopes

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