Who Was Galileo Galilei?
Galileo Galilei (1564-1642), the great Italian scientist and mathematician, was the first astronomer to use a telescope, the discoverer of t
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Telescope
What Is the Milky Way Galaxy?
The Milky Way, or Galaxy, is the whole concourse of stars and other bodies which can be seen stretched across the heavens. It includes our o
What Is a Theodolite?
A theodolite is a surveying instrument used for measuring horizontal and vertical angles, and has been adapted for specialized purposes such
Who Put His Telescope to His Blind Eye?
Who Put His Telescope to His Blind Eye? Vice Admiral Horatio Nelson, 1st Viscount Nelson, 1st Duke of Bronté KB (29 September 1758 – 21 O
How Was the Telescope Improved?
How Was the Telescope Improved? The improvement of the telescope to the powerful instrument of our time was a long gradual process involving