Refractor and reflector telescopes are described. Refractors use convex lenses to collect, focus, and magnify light, while reflectors use two concave mirrors to bounce light up to another mirror and into the eyepiece. Reflectors are better for deep-sky objects and large reflectors are popular, but their mirrors need re-coating every few years. Refractors are better for planets and the moon but suffer from chromatic aberration and are more expensive. The reflector was invented by James Gregory in 1663 and first built by Isaac Newton in 1689, while the refractor was invented by Hans Lippershey using convex lenses held in a tube.
in this presentation analyzing type of telescope and then describe radio telescope with history and how working and devices for used this telescope and describe the biggest radio telescope in words. and describe Advantages Radio Telescope And Disadvantages Radio Telescope
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in this presentation analyzing optical telescope and type of lens then lens telescope compared newton telescope in university of sulaimani. tell me for other description.
in this presentation analyzing type of telescope and then describe radio telescope with history and how working and devices for used this telescope and describe the biggest radio telescope in words. and describe Advantages Radio Telescope And Disadvantages Radio Telescope
tell me for more information about this presentation
in this presentation analyzing optical telescope and type of lens then lens telescope compared newton telescope in university of sulaimani. tell me for other description.
The contents of this presentation includes the history of telescope, types of telescopes: its definition, diagrams, uses, advantages and disadvantages.
Topic: Telescope and the Universe
Type: Analysis
Subject: Astronomy
Academic Level: Undergraduate
Style: Oxford Language: English (U.S)
Number of Pages: 3 (double-spaced, Times New Roman, Font 12)
Number of sources: 2
Task Details
Analyze how the telescope changed our view of the universe and our place in it
Find more here: https://writersperhour.com/analysis-papers
A presentation on microscopes- its evolution, history, uses, types, etc. beneficial for pathology students. impart knowledge about types of lens, parts of microscope ands their use.
4. REFLECTOR PROS/CONS
Pros Cons
The reflector is good The Mirrors in the
for deep-sky objects telescope have to be
Large Reflectors are recoated every few
very popular years in order to
function properly
Its easy to damage
them, they are fragile
if you handle them to
roughly
5. REFRACTOR PROS/CONS
Pros Cons
The Refractor The refractor suffers
telescope is better for from chromatic
observing the planets aberration
and the moon
Very expensive
The Refractor
telescope uses lenses
instead of mirrors so
they don’t have to get
recoated like the
mirrors of the
reflector telescope
6. REFLECTOR HISTORY
The Reflector Telescope was invented by a Scottish
astronomer named James Gregory. James Gregory
was the one who designed in 1663 and then in 1689
Isaac Newton built the first Reflector telescope.
7. REFRACTOR HISTORY
The Refractor telescope was invented by a Dutch
optician, Hans Lippershey who designed convex
lenses held in front of each other, he put the lenses
in a tube to make the first refractor telescope.
8. BIBLIOGRAPHY
Bibliography
Refractor Telescope. (1998 - 2013). Retrieved from How
Stuff Works:
http://science.howstuffworks.com/telescope1.htm
Brain, M. (1998 - 2013). Refractor Telescope. Retrieved from
How Stuff Works:
http://science.howstuffworks.com/telescope1.htm
"All about Telescopes: Refractors, Reflectors and More." All
about Telescopes: Refractors, Reflectors and More. N.p., n.d.
Web. 28 Jan. 2013.
"How Telescopes Work." HowStuffWorks. N.p., n.d. Web. 28
Jan. 2013
"Reflector Telescope." Universe Today RSS. N.p., n.d. Web.
28 Jan. 2013
"Advantages and Disadvantages of Reflecting Telescopes."
Yahoo! Contributor Network. N.p., n.d. Web. 28 Jan. 2013.