04-12-2010, 04:11 PM
سلام
اسن لينكها مي تونه براتون مفيد باشه:
http://www.best-telescope-guide.com/rit ... scope.html
http://heasarc.gsfc.nasa.gov/docs/swift ... _desc.html
http://en.wikipedia.org/wiki/Reflecting_telescope
اسن لينكها مي تونه براتون مفيد باشه:
http://www.best-telescope-guide.com/rit ... scope.html
http://heasarc.gsfc.nasa.gov/docs/swift ... _desc.html
http://en.wikipedia.org/wiki/Reflecting_telescope
Science is a way of trying not to fool yourself. The first principle is that you must not fool yourself, and you are the easiest person to fool. Richard Feynman