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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Sun Gun Telescope ： ウィキペディア英語版 Sun Gun Telescope Sun Gun Telescope, as featured in the August 1999 issue of ''Scientific American'' magazine, was designed so that large groups of people can view the sun safely - in particular it was created as a way to encourage children to become interested in astronomy. With this safe and portable device, both amateur science enthusiasts and professionals alike can observe sun spots. Bruce Hegerberg designed the Sun Gun from a 60mm dia. 900mm fl. optical tube which is mounted inside a 3" PVC which is in turn connected to a 20" plastic flower planter. A rear projection screen is then mounted on the top of the flower planter. The entire Sun Gun can be made from items easily found at most local hardware stores. The scope itself is an inexpensive 60mm refractor available from many sources. ==See also== * List of telescope types 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Sun Gun Telescope」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.