Timeline for How can you compute the maximum volume of an envelope(used to enclose a letter)?
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
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| Jul 27, 2018 at 22:58 | vote | accept | Victor Stone | ||
| Jul 27, 2018 at 22:59 | |||||
| Jan 4, 2016 at 4:18 | comment | added | Manfred Weis | @JosephO'Rourke the solution clearly depends on whether the ballon is made of rubber, aluminum foil or something else; therefore my suggestion, that the proper mathematical be clarified before thinking about a solution. Paper contains inelastic whiskers in every direction; therefore isometric deformations seem appropriate. Linnen pillows covers could be modelled by transformations that take square coordinate grids to rhombic ones; Finsterwalder worked on that topic about a century ago. | |
| Jan 3, 2016 at 23:39 | comment | added | Joseph O'Rourke | I believe there would be wrinkling creases, as is evident in mylar balloons: Paulsen, William H. "What is the shape of a mylar balloon?" American Mathematical Monthly (1994): 953-958. (Jstor link.) | |
| Jan 3, 2016 at 20:15 | history | edited | Manfred Weis | CC BY-SA 3.0 |
an envelope made of paper as well as its deformations have of course zero Gauss curvature almost everywhere
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| Jan 2, 2016 at 8:28 | history | edited | Manfred Weis | CC BY-SA 3.0 |
added 99 characters in body
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| Jan 2, 2016 at 8:04 | history | edited | Manfred Weis | CC BY-SA 3.0 |
added a link to the author of the polyhedral cushions cited in Spektrum der Wissenschaft 06/95
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| Jan 2, 2016 at 7:39 | history | answered | Manfred Weis | CC BY-SA 3.0 |