WEKO3
アイテム
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無重力状態の水中でピンポン玉と鉄球の位置関係が変わったらどうなるか?
https://repo.qst.go.jp/records/69907
https://repo.qst.go.jp/records/69907302996e3-a6ba-4fdd-a0b8-7f3b040292c7
Item type | 会議発表用資料 / Presentation(1) | |||||
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公開日 | 2009-10-22 | |||||
タイトル | ||||||
タイトル | 無重力状態の水中でピンポン玉と鉄球の位置関係が変わったらどうなるか? | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_c94f | |||||
資源タイプ | conference object | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
関根, 絵美子
× 関根, 絵美子× 安西, 和紀× 関根 絵美子× 安西 和紀 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Purpose Buoyancy and gravity disappear in the condition of weightlessness. We observed the behavior of ping-pong ball and iron ball, placed in a water-filled acrylic box, in the micro-gravity. The purpose of this study is to make teaching materials for the primary and secondary students to understand weightlessness. Materials and methods We designed a device made of the acrylic box which sealed up ping-pong ball and iron ball under water. Under the gravity (1 G) and in the water, the ping-pong ball float and the iron ball sink. When the condition became micro-gravity, I reversed the container, and observed the behavior of both balls using by a video tape recorder. The condition of micro gravity was produced by parabolic flight of a jet. Results When the condition approached micro-gravity by parabolic flight, the ping-pong ball and the iron ball sunk and/or floated, and this phenomenon was repeated during micro-gravity interval. The device was reversed when the weightlessness became stable (Hi call) . After iron ball sunk and ping-pong ball floated, both balls were sunk slowly . Then, both balls sunk and/or floated and repeated. These results suggested that the both balls float/sunk according to vibration of the micro-gravity. This system seems to work as a sensitive micro-gravity detector. |
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会議概要(会議名, 開催地, 会期, 主催者等) | ||||||
内容記述タイプ | Other | |||||
内容記述 | 日本マイクログラビティ応用学会 | |||||
発表年月日 | ||||||
日付 | 2009-10-21 | |||||
日付タイプ | Issued |