Students can investigate the historical development of six different telescopes. The technical aspects of different telescopes are also presented.

This site describes the difference between reflective and refractive telescopes and includes a virtual tour of Yerkes Observatory which houses the largest refracting telescope in the world.

Learn all about the Hubble Telescope and obtain vital statistics at the same time. Click on links to watch different movies about the Hubble.

[Free Registration/Login Required] Learn about the law of reflection by curved mirrors and how the shape and size of a telescope impacts its observing capabilities.

[Free Registration/Login may be required to access all resource tools.] Overview of types of telescopes.

Directions and suggestions for making a parabolic mirror out of epoxy for use in a reflecting telescope. Links provided for sources of epoxy.

Wikipedia provides detailed information on refracting telescopes, including an image, technical difficulties, and a hyperlinked list to info on notable refracting telescopes.

The Anglo-Australian Observatory located in the center of Australia is a joint venture between the Australian and British governments. Page gives basic information about the observatory and its telescopes. Check out the site map first...

A discussion of reflecting telescopes and their use in radio astronomy. The types of information gained from and the research emphasis fueled by such telescopes is described. Site uses Hollywood references and a humorous style.

From the Yerkes Observatory Virtual Tour web site. Compares and contrasts reflecting and refracting telescopes. A link from the page leads to a second page which explains why most modern research telescopes are reflecting telescopes.

Get the facts and historical background information on reflecting telescopes, an important astronomical tool. This page has great accompanying photographs, as well as diagrams.

Get the facts and historical background information on reflecting telescopes, an important astronomical tool. This page has great accompanying photographs, as well as diagrams.

Use this site to learn more about early inventors and inventions from the 18th century. This web page offers text and images on various inventors and their inventions. You can also access information about inventors and inventions from...

An online website, from a historical perspective, of the study of the transit of Venus between the sun and the earth.

In this interactive tutorial students will learn about a few of the instruments used to further our knowledge of the Universe around us.

This site, in German, offers numerous apps that illustrate common physics principles. Apps are organized into categories: mechanics, oscillations and waves, electrodynamics, optics, thermodynamics, the theory of relativity, physics of...