Sunday, February 12, 2012

How powerful was Galileo's first telescope?

  Galileo made his first telescope in 1609. It employed two lenses and was strong enough for astronomical viewing by magnifying objects to thirty-two times their original size. By today's standards, that level of magnification is not very impressive. A relatively inexpensive telescope today features a magnification fifty to five hundred times that of Galileo's.

Galileos telescope

No comments:

Post a Comment