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A History of the Telescope

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by

vyacheslav molotov

on 15 September 2014

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Transcript of A History of the Telescope

How has this product impacted society in a positive way?
Telescope STEM Chart
Conclusion
Why are most products innovated?
Who was the original inventor and when was it invented?
Hans Lippershey, a German eyeglass maker, is credited with the invention of the telescope in 1608.
Innovations pt. 2
18th Century Innovations

The achromatic lens, which greatly reduced color aberrations in objective lenses and allowed for shorter and more functional telescopes, first appeared in a 1733 telescope made by Chester Moore Hall, who did not publicize it. John Dollond learned of Hall's invention and began producing telescopes using it in commercial quantities, starting in 1758.

In 1721, John Hadley produced larger paraboloidal (a type of quadric surface) lenses for reflecting telescopes.

In 1783, William Herschel discovered the planet Uranus, using

In 1789, William Herschel finished his invention of the 40ft. telescope.

What is this artifact?
The telescope. The telescope is used to make things that are far away seem closer. It magnifies things so you can see detail and things far away.
A History of the Telescope
By Dominic Szymanski

What are some of the innovations (improvements) that this product has undergone since its original invention?

17th Century Innovations

In 1611, Johannes Kepler described how a telescope could be made with a convex objective lens and a convex eyepiece lens, and by 1655 astronomers such as Christiaan Huygens were building powerful Keplerian telescopes with compound eyepieces.

In 1668, Sir Isaac Newton builds the first reflector with a design that incorporated a small flat diagonal mirror to reflect the light to an eyepiece mounted on the side of the telescope.

In 1672, Laurent Cassegrain described Newton’s design of a reflector with a small convex secondary mirror to reflect light through a central hole in the main mirror.

Innovations pt. 3
19th Century Innovations

In 1857, Leon Foucault invented the process of silvering (the chemical process of coating glass with a reflective substance.

In 1856-57, Karl August von Steinheil and Leon Foucault introduced a process of depositing a layer of silver on glass telescope mirrors.

Most products are innovated to improve on design, and to help us do things better than before.

This product has impacted society today by showing us many new things in the sky. Galileo Galilei heard about the telescope in 1609, and made his own. He greatly improved the design in the following year. With his telescope, he discovered four moons of Jupiter. With the telescope, we are able to discover and learn about new things beyond our planet.

S: Most of the telescope is scientific. The lenses and
other things are all done with science.
T: All of the newest telescopic technology is put into
the best modern telescopes.
E: The engineer must plan out, and build the
telescope.
M: Math is incorporated with the measurements of
the telescope.
Full transcript