Video Details

http://www.teachastronomy.com/ In the first few hundred years of optical astronomy using telescopes, the only detector was the human eye. When astronomers looked through the telescope from the time of Galileo for a long time afterwards they could only see what the eye could see, and if they were... More


Added Jul 7, 2010  

Channel Education

Duration 1:36   |   views 482


Embed This Video:

Like this video? Share it! Submit it to Stumbleupon by Clicking here -->

Like us on Facebook for Frequent Updates

All Rights Reserved Astronomy Central.