How to Make an Upside Down Telescope : Upside Down Telescope: Measure & Mark Points of Distance

How to Make an Upside Down Telescope : Upside Down Telescope: Measure & Mark Points of Distance
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Accurate markings are important for the proper function of your telescope. Learn how to make an upside down telescope in this free crafts video. Expert: Gary Zier Bio: Gary Zier, originally from Florida, is a systems administrator with 10 years of comput

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