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Cake day: June 23rd, 2023

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  • The main reason spinning a can works is because it induces convection inside and outside of the can, which contributes to more collisions and better distributions of collisions. If the warmest soda is in the middle of the can, the cold molecules near the can walls will reach a temperature similar to the ice bath and thud the rate at which heat is transferred becomes stunted.

    For lettuce, you’d have better luck finding a way to pass cold water between the leaves, much like having fins on a heatsink (surface area).


  • Sorry, saturation is not the right word to describe it. I was thinking of the ice/water analogy and I mistakenly applied it to my heatsink analogy.

    The correct limit to the heatsink analogy would a function of the thermal dissipation of the heatsink (material, surface area, thermal resistance) and the qualities of the surrounding fluid (ambient temp, flow, etc). Honestly, my comparison between the ice/water example and heatsinks is not good. It is only appropriate in reference to the “molecular collisions” concept I mentioned before.


  • By spinning the can in ice water, it increases the rate of transfer of heat energy from the drink in the can, to the can itself, to the ice water. It’s like how stirring the ice in a cup of not-cold water will melt the ice / cool the water faster.

    At a molecular level, you would see an increase in the number of collisions between ice molecules and liquid molecules. The collisions must occur for heat transfer to happen, so more collisions = more cooling. It is also the same reason why a heatsink can draw more heat from a processor when a fan blows air over it (until the air is saturated with heat).







  • Don’t you feel it’s a bit counterintuitive to call someone tonedeaf for being unaware of “International Day of Solidarity with Long Term Anarchist Prisoners”, something that more than 99.9999% of people are likely unaware of?

    Wouldn’t you be better off, say, helping build awareness of such a day instead of simply berating someone for not knowing about it? At the moment, you’re teaching people to treat it like a joke.



  • Been called a ch*nk multiple times by random people in public, been told as a child that I should be performing better in school because of the “type of person” that I am, been called a dog-eater by peers, asked “what’s your real name” (even though my government name is an English one), etc.

    One time someone called me a ch*nk, I explained that despite them being shitty for thinking that’s okay, that I’m not even Chinese, so they must be extra braindead. I also said that it must be disappointing to know less of the English language than a non-white person, and that if a white person like them can’t learn proper English, then they’re failing their own expectations of what it means to be American. I suppose hearing me say that in perfect American English was enough for them to realize how dumb they were being. Everyone in the room glared at them and they shut the fuck up and left lmao.