Skip to main content
Like
Create new Glog
previous
next
Email share
9 views | 0 likes | 0 reposts
New Vinyl & Toys Gallery!!
poster yourself
History of Telescope
Galileo Galilei introduced telescopes to astronomy in 1969
In 1704 Sir Isaac Newton upgraded the telescope to using a curved mirror was used to gather in light.
Newton's fundamental principle of using a single curved mirror to gather in light remained the same.
The major change that took place was the growth in the size of the reflecting mirror, from the 6-inch mirror used by Newton to the 6-meter (236 inches in diameter) mirror of the Special Astrophysical Observatory in Russia, which opened in 1974.
The universe is expanding, Black holes exist, there are multiple galaxies in the universe, pulsars exist. Saturn has rings. Jupiter has lots of moons. The sun has spots. Their are stars much bigger than ours.
