Eyes on the Skies - Refractor telescope

This 3D animation shows a refractor telescope and how the optics work. This animation is part of the movie Eyes on the Skies. Read more about it on http://www.eyesontheskies.org/.

NOTE: The full "Eyes on the Skies" chapter may be shown and used in its entirety under our usual usage conditions. However since parts of this material is third-party, clips may not be used individually without prior approval.