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2017-03-27 Astronomy - Fair Market Value:

Hi James    It was Sir Isaac Newton who first came up with this idea.  Instead of using a lens, he used a concave mirror that collected light and brought it to a focus---like a shaving mirror.  Just about

2017-03-26 Astronomy - Fair Market Value:

Hi James    Most amateur telescope makers choose to make reflecting telescopes, using mirrors rather than lenses.  The process is the same:  you grind the glass to shape using varying sizes of grit, then

2017-03-26 Astronomy - Fair Market Value:

Hi James    This is not an easy question to answer. You are correct, that there are few moving parts and little wear and tear on most telescopes--so you'd think they would have a high resale value.  But

2017-03-07 Astronomy - Cheap Telescope:

Hello,      First, before giving a direct answer let's look at some applicable quantities. These include the space station's longest dimension (109 m) and its mean distance (249 miles). We want to ascertain

2017-02-24 Astronomy - Probability:

Exactly! There is simply no specific way to obtain such a result given you are no longer in a deterministic realm, but a stochastic or nonlinear domain.  I don't know if you've ever taken a college physics

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