3 ms·
How long does it take to get last liquid drops from kitchen containers?
- sudhirb 7mo agoI can hardly believe my eyes! I helped do some related research specifically concerning thin-film drainage from tubes, way back in my undergraduate days: https://doi.org/10.1016/j.expthermflusci.2018.04.015 https://doi.org/10.1016/j.expthermflusci.2018.04.015
- leni536 7mo agoI also handed in a solution for a similar problem in a university Physics competition. 11th problem here: https://ortvay.elte.hu/2009/E09.pdf https://ortvay.elte.hu/2009/E09.pdf I was the only one who handed in a solution for that particular problem, it was scored 70 out of 100. I no longer have my solution, but I doubt that it was very accurate, and I didn't have time for experiments.
- jiehong 7mo agoInteresting! For the wok example, I recommend just putting the wok back on the stove for a few seconds and have the thin water film evaporated, before quickly coating it with an oiled tissue, and store it hot. It takes 30 seconds max.
- NetMageSCW 7mo agoSo you wash your wok before eating? While it is still hot?
- wongarsu 7mo agoCleaning it while it's still hot is also a good strategy for pans. Obviously that has limits on how dirty it can be. But if everything went well while cooking it's fast and painless
- dunham 7mo agoI typically wash my wok (and any carbon steel skillet) before eating. They seem to be easier to clean while hot. But I use an outdoor butane burner for the wok, so I'm not heating it back up afterwards. I usually wash and set it upside down on the counter to drain.
- SiempreViernes 7mo agoThey suggest reheating the wok on the stove, why would that imply it has to be done before eating? Does your stove not turn on after you have finished eating?
- distances 7mo agoInteresting, but the headline was misleading -- this was about the time to get the first 90%. The last drop was not discussed. I was already intrigued about how one could know when a drop was the last drop.
- dotancohen 7mo agoSometimes that last drop could be over a decade away: https://en.wikipedia.org/wiki/Pitch_drop_experiment https://en.wikipedia.org/wiki/Pitch_drop_experiment
- NoMoreNicksLeft 7mo agoI wouldn't be shocked if the last drop of pitch took quite a bit longer than the first few.
- amelius 7mo agoDoesn't glass also behave as a liquid, over very long timespans?
- Bratmon 7mo agoNo, that's a common myth: https://en.wikipedia.org/wiki/Glass#Reputed_flow https://en.wikipedia.org/wiki/Glass#Reputed_flow
- deleted 7mo ago[deleted]
- SAI_Peregrinus 7mo agoIt only flows if it's in a liquid state. That happens when the temperature gets high enough. Over exceedingly long timespans Sol will enter its red giant phase & engulf the Earth in its outer atmosphere. This will raise all glass remaining on the surface above said glass's melting point. So if you're being exceedingly pedantic & considering multi-billion-year timespans, then most glass will eventually flow. Some glass may escape this fate by no longer being on the surface of the Earth.
- shdudns 7mo agoWhy didn't Professor tang just put the wok back on the stove for a few seconds. That'll dry out it out fast and you can see the film disappear. Under careful supervision, the wok won't even get anywhere near 100C
- oulipo2 7mo agoTrump is going to forbid this wok research
- ImPostingOnHN 7mo agoShake it off and it will finish drying a lot faster.
- butILoveLife 7mo agoOh academia, trying to find scientific truths and end up just being pragmatic. I know they'd take offense to such things, which is why I say it. This is no different from a mom blog, yet because its academia, we pretend its valuable. Adam Ragusa-like people could/should do this study. We should value it as much. As long as its replicated, good for me. And let us not pretend there is some sort of pure magic that happens in a lab. I'll take 10 average joes replicating a study over 1 lab unreplicated. (FYI that is the scientific method, Appeal to Authority is the opposite of the scientific method)
- tjwebbnorfolk 7mo agoYea, this could have been a youtube video.
- IAmBroom 7mo agoA paper was published claiming that it was unnecessary to stir the bag about in a teacup, as the same amount of tea dissolved into the water anyway. The paper was clearly based entirely on math models, so I tested it. Yeah, it's horseshit.
- amelius 7mo agoHint: it goes faster if you don't watch.
- mindslight 7mo agoSeriously. Oil, thicker juices, etc I stick something under the end of the bottle so it pools in the curve close to the top and then come back later to pour it out. Laundry detergent I just leave inverted draining into the cup (and/or rinse several times with water as the washer fills). Hand soap I rinse as I'm making the next bottle of 50/50 mix for a foaming dispenser.
- mystraline 7mo agoI could see companies adding a PFAS like coating on the inside of containers, and then sell them as completely emptyable containers. And unless you tested flourine pollution, you'd never know.