Refracting telescope: Brings light to a focus by passing it completely through a transparent glass lens.
The lens must be perfect throughout, and unobstructed.
Reflecting telescope: Brings light to a focus by reflecting it from the surface of a curved mirror.
The surface shape must be perfect, but the mirror may be made of anything, and can be supported
by anything.
There is a difference
five
WHATS THATT!!!
what's the difference between rival and copetitor?
whats the difference between cost and list?
After reflecting ______, i now see _______ or restate the essay and sum it up
what is difference between accounts and engineering
theres no difference apart from people demanding and suppling
The difference between the two numbers is 923.4 - 375.8 = 547.6
Whats the difference between maths lit and pure maths
about $30,000.
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