Timeline for meteorite-like impact of a drop of yogurt
Current License: CC BY-SA 4.0
23 events
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| Jun 4, 2020 at 16:03 | history | edited | CommunityBot |
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| S Jul 29, 2019 at 23:04 | history | suggested | Glorfindel | CC BY-SA 4.0 |
broken images fixed (click 'rendered output' or 'side-by-side' to see the difference; image retrieved via Wayback Machine); for more info, see https://gist.github.com/Glorfindel83/9d954d34385d2ac2597bbe864466259f
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| Jul 29, 2019 at 22:17 | review | Suggested edits | |||
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| Jun 19, 2015 at 20:35 | review | Close votes | |||
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| Jun 19, 2015 at 19:22 | comment | added | userLTK | In college, living on the 4th floor, one time when a friend was approaching, I dropped one of those 2 lb jugs of peanut butter from the window - not on top of him, he was just approaching. I yelled "hey frank, catch", which he didn't, he just watched, but he said the plastic container of peanut butter hit the sidewalk and the peanut butter flew out upwards like it was water, about 4 feet high in a pretty spout. That doesn't have much to do with your question, but it's what your question made me think of. Everything becomes a fluid at high enough pressure, pretty much. | |
| Jun 19, 2015 at 18:55 | answer | added | Jokela | timeline score: 4 | |
| Dec 7, 2014 at 9:32 | history | tweeted | twitter.com/#!/StackPhysics/status/541525585236078592 | ||
| Oct 18, 2014 at 14:02 | comment | added | honeste_vivere | So at high temperatures, rock becomes fluid which leads to some of the interesting behavior in meteorite impacts. There has been a lot of interesting work on water drops falling into a glass of water etc. Leo Kadanoff has done some fun stuff with this type of experiment. Here are some neat examples. | |
| Sep 29, 2014 at 0:58 | comment | added | tpg2114 | I'm not sure exactly what you're asking... The explanation through fluid dynamics is that yogurt (and the Earth at really large impact velocities) behaves like a fluid. The explanation is simply that these may be modeled as a fluid because they obey the equations of fluid dynamics. | |
| Sep 29, 2014 at 0:45 | history | edited | Achmed | CC BY-SA 3.0 |
http://en.wikipedia.org/wiki/Impact_event
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| Sep 28, 2014 at 20:56 | comment | added | user3823992 | This seems to fall under "granular media". Looks like @BeastRaban is quite right. The ground, like yogurt, is basically a shear-thinning fluid. So it gets stuck as a crater when the energy starts to dissipate. | |
| Sep 28, 2014 at 20:43 | comment | added | Achmed | @BeastRaban "it's perfectly plausible that they might display fluid-like properties in higher energies" Finally, someone who speaks English!. It's good to meet you, :) | |
| Sep 28, 2014 at 17:49 | comment | added | BeastRaban | @KyleKanos While rocks aren't fluid in our everyday energies, it's perfectly plausible that they might display fluid-like properties in higher energies... I guess one could compute the relevant Reynolds number to find out :) | |
| Sep 28, 2014 at 17:16 | comment | added | Kyle Kanos | Fluids typically follow the Navier-Stokes equations, so there's your yogurt example. However, rocks aren't fluids so we can't use that there. Thus, I'd argue that different principles apply here & the two ought not be compared. You may be interested in this earlier question. | |
| Sep 28, 2014 at 14:54 | comment | added | Selene Routley | From what software? That's fantastically impressive! | |
| Sep 28, 2014 at 14:52 | comment | added | Achmed | @WetSavannaAnimal aka Rod Vance "Where did you get the last image from?" that is a single shot of a computer simulation | |
| Sep 28, 2014 at 14:08 | history | edited | Achmed | CC BY-SA 3.0 |
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| Sep 28, 2014 at 13:58 | history | edited | Achmed | CC BY-SA 3.0 |
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| Sep 28, 2014 at 13:57 | comment | added | Selene Routley | Where did you get the last image from? I suspect if you could fully answer this question, you might be in the running for a Clay Mathematics Institute Prize | |
| Sep 28, 2014 at 12:25 | history | edited | Achmed | CC BY-SA 3.0 |
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| Sep 28, 2014 at 12:18 | history | edited | Achmed | CC BY-SA 3.0 |
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| Sep 28, 2014 at 12:10 | history | edited | Achmed | CC BY-SA 3.0 |
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| Sep 28, 2014 at 11:58 | history | asked | Achmed | CC BY-SA 3.0 |