Timeline for What would you want to see at the Museum of Mathematics?
Current License: CC BY-SA 3.0
8 events
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| Mar 16, 2016 at 11:04 | history | edited | André Henriques | CC BY-SA 3.0 |
added 145 characters in body
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| Jan 10, 2012 at 14:30 | comment | added | Dror Bar-Natan | @Vectornaut: Imagine wagging a conformal dog (or a 2D cutout of a dog) by its tail. You tickle the tail just a bit, and over at the head side things move dramatically. Potentially, $10^{50}$ times faster. If the fabric at the head side has any weight, you'll need a lot of energy to move it. | |
| Jan 4, 2012 at 20:59 | comment | added | Vectornaut | @Dylan Thurston: Although it wouldn't be as nice as a physical conformal fabric, you can build almost anything under the glass of a touch screen... | |
| Jan 4, 2012 at 20:50 | comment | added | Vectornaut | @Dror Bar-Natan: Why do you say "conformal fabrics would violate conservation of energy, as a small motion in one place may lead to a huge motion somewhere else"? When you use a pair of scissors, a small motion in one place leads to a large motion somewhere else---do scissors violate conservation of energy too? | |
| May 11, 2011 at 19:28 | comment | added | Dror Bar-Natan | Yes, unfortunately conformal fabrics would violate conservation of energy, as a small motion in one place may lead to a huge motion somewhere else. Perhaps I should settle for a crank-powered approximate conformal fabric, that would at least illustrate the difficulty in making the real thing. | |
| May 2, 2011 at 4:16 | comment | added | Tom Goodwillie | I'm skeptical about easily imagining holding it. What does it feel like to pull on it? When you're stretching it into a new shape, you can't simply pull it by the edges because a Riemann mapping has very rigid boundary behavior. | |
| May 2, 2011 at 3:01 | comment | added | Dylan Thurston | Very nice. An interesting engineering challenge to make such a thing. | |
| May 2, 2011 at 2:05 | history | answered | Dror Bar-Natan | CC BY-SA 3.0 |