answersLogoWhite

0

Gailileo made a telescope having about 20 power magnification, powerful enough to observe the mountains and valleys on Earth's Moon and the four largest moons of Jupiter. He did not invent the telescope, but improved the simple telescope invented by Dutch optician Hans Lippershey in 1608 by using the principles developed by Roger Bacon of England during the 13th century.

User Avatar

Wiki User

16y ago

What else can I help you with?