Poincaré conjecture : 無料・フリー素材/写真
Poincaré conjecture / Jon Haynes Photography
| ライセンス | クリエイティブ・コモンズ 表示-改変禁止 2.1 |
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| 説明 | I don't have a lot of thought put in to this question but it seems to me that this is the general idea.How can a donut shape morph in to a sphere whithout tearing. Is that correct?en.wikipedia.org/wiki/Poincar%c3%a9_conjecture |
| 撮影日 | 2006-08-27 10:57:17 |
| 撮影者 | Jon Haynes Photography |
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