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Spinning eggs : which end will rise?
http://hdl.handle.net/10131/7416
http://hdl.handle.net/10131/7416dcb1ecc5-58e6-4b08-8014-56dd5a57f7a8
名前 / ファイル | ライセンス | アクション |
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ks-eggs.pdf (113.4 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2011-03-28 | |||||
タイトル | ||||||
タイトル | Spinning eggs : which end will rise? | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Sasaki, Ken
× Sasaki, Ken |
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著者(ヨミ) | ||||||
識別子Scheme | WEKO | |||||
識別子 | 17623 | |||||
姓名 | ササキ, ケン | |||||
著者別名 | ||||||
識別子Scheme | WEKO | |||||
識別子 | 17624 | |||||
姓名 | 佐々木, 賢 | |||||
著者所属 | ||||||
値 | Department of Physics, Faculty of Engineering, Yokohama National University = 横浜国立大学大学院工学研究院 知的構造の創生部門 物理科学と知の創造分野 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We examine the spinning behavior of egg-shaped axisymmetric bodies whose cross sections are described by several oval curves similar to real eggs with thin and fat ends. We use the gyroscopic balance condition of Moffatt and Shimomura and analyze the slip velocity of the bodies at the point of contact as a function of θ, the angle between the axis of symmetry and the vertical axis, and find the existence of the critical angle u c . When the bodies are spun with an initial angle θ initial > θc, θ will increase to p, implying that the body will spin at the thin end. Alternatively, if θ initial < θc, then θ will decrease. For some oval curves, θ will reduce to 0 and the corresponding bodies will spin at the fat end. For other oval curves, a fixed point atθf is predicted, where 0 < θf < θc. Then the bodies will spin not at the fat end, but at a new stable point with θf. The empirical fact that eggs more often spin at the fat than at the thin end is explained. | |||||
書誌情報 |
American journal of physics 巻 72, 号 6, p. 775-781, 発行日 2004-06 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00029505 | |||||
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収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00521097 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1119/1.1634966 | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
出版者 | ||||||
出版者 | American Association of Physics Teachers |