Main types of Telescopes

Main types of Telescopes - Galileo - Hubble
Video clip:
http://www.spacetelescope.org/videos/archive/viewall/
Music:
I Ka Barra (Your Work)
by Habib Koité and Bamada
http://en.wikipedia.org/wiki/Habib_Koit%C3%A9
http://www.contrejour.com/artists/habibkoite/

Refractor telescope
http://en.wikipedia.org/wiki/Refracting_telescope

Reflector telescope
http://en.wikipedia.org/wiki/Reflecting_telescope

Equatorial mount telescope
http://en.wikipedia.org/wiki/Equatorial_mount

Alt-azimuth mount telescope
http://en.wikipedia.org/wiki/Altazimuth