Contramuffin

@Contramuffin@lemmy.world

• ⁨Comment⁩ on ⁨Is it reasonable to tell a person you once loved about the fact years later?⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:

  It’s not a matter of semantics, it’s a matter of drawing a distinction between 2 emotions that are often confused with each other. Call it whatever you want, but what OP calls love is clearly not what a regular person would consider to be love. This distinction, which has been made by several other people in this thread as well, is important because people will and often do justify being a creep as that they’re “in love.” See how already so much of OP’s argument hinges on the idea that he is in love? To be clear, he is very explicit that he is not just attracted to her - he is very clear that he believes he feels what a regular person would consider to be love.

  Granted, in hindsight and given his responses so far, it seems unlikely that drawing this distinction would make a meaningful practical difference. But I fail to see how addressing one of the core parts of OP’s arguments can be considered as meaningless argument over semantics

• ⁨Comment⁩ on ⁨Is it reasonable to tell a person you once loved about the fact years later?⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:

  Whatever you say, brother. We’re only here to provide advice. And so far, everyone’s advice seems to be on the same page. It’s your decision whether to take it.

  I will however point out that, in fact, the modern consensus is that Romeo and Juliet were not in love and that it was, at best, a hormone-driven highschool crush that lasted less than a week

• ⁨Comment⁩ on ⁨Is it reasonable to tell a person you once loved about the fact years later?⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:

  This person’s advice is comprehensive and correct. You need to accept it. What you’re feeling is not love. Love is something that is built up over years of being in a relationship. No relationship, no love. If what you’re feeling is as strong as you claim, then the correct word would be infatuation, or possibly obsession.

  You’re going to come off as extremely creepy to her. Let it go.

• ⁨Comment⁩ on ⁨What is the hate against Pit Bulls? Everyone I've met are super friendly like my BC. Or are they the new Doberman for this cycle?⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:

  I’m confused now. Do you genuinely think dogs are a natural species? Because… that might explain a lot about this entire post

• ⁨Comment⁩ on ⁨Copper⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:

  Apparently, yes. You can prevent thermal throttling if you expanded the base from 4 cm x 4 cm to 4.5 cm x 4.5 cm, and if you increased the height from 16 cm to 100 cm. The temperature caps at around 97 C.

• ⁨Comment⁩ on ⁨Copper⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:

  Ea-nasir promised that these were good quality copper, and I do not have any reason to suspect otherwise. But I’ll have you know, if the copper is of inferior quality, I will make sure to send my messenger to complain. He will not hear the end of it!

• ⁨Comment⁩ on ⁨Copper⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:

  Python

• ⁨Comment⁩ on ⁨Copper⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:

  Good question. I had to modify my code to run more efficiently, since not throttling implies that the copper block reaches a steady state with very little temperature changes over time.

  But, with the changes, I can say that there is no copper block length that would prevent throttling with a 120 W CPU. It seems the heat transfer within the block is slow enough over such long lengths that you get diminishing returns with longer and longer copper blocks. Here’s a graph I made summarizing the different block lengths that I testedImage

• ⁨Comment⁩ on ⁨Copper⁩ ⁨⁨3⁩ ⁨weeks⁩ ago⁩:

  See, I thought about doing that, but then I realized: I don’t actually want to do that

• ⁨Comment⁩ on ⁨Copper⁩ ⁨⁨3⁩ ⁨weeks⁩ ago⁩:

  I left another comment going into more detail about the model specifications, if you’d like to read into it. But briefly: I took the copper heat conductivity coefficient and the air heat transfer coefficient. I sliced the copper block into thin slices and modeled heat transfer between each slice, as well as heat transfer between each slice and the surrounding air.

  It seems that both heat transfer and heat loss do actually matter quite significantly, but they just cancel each other out almost entirely.

  If we assume instantaneous heat transfer, thermal throttling time goes up from 592 seconds to 703 seconds (almost 2 minute difference).

  If we assume no heat loss to the air, thermal throttling time goes down from 592 seconds to 500 seconds (about 1.5 minute difference).

• ⁨Comment⁩ on ⁨Copper⁩ ⁨⁨3⁩ ⁨weeks⁩ ago⁩:

  Copper conductivity is fast, sure, but it’s not fast enough to have equal temperatures at the top and bottom for such a big chunk of copper. That does affect the time to thermal throttle pretty significantly, actually. If we assume completely homogeneous temperatures across the block (ie, instantaneous heat transfer), according to my model, it’ll take 703 seconds to thermal throttle. With heat transfer, the time drops to 592 seconds - a difference of almost 2 minutes

• ⁨Comment⁩ on ⁨Copper⁩ ⁨⁨3⁩ ⁨weeks⁩ ago⁩:

  Was bored, so made a simulation to figure it out.

  TLDR: 592.2 seconds, or 9 minutes and 52.2 seconds. Very similar to the other comment, so it appears temperature differentials and heat loss to the air are somewhat minor effects compared to the sheer heat mass of the block

  Assumptions:

  • Copper’s heat conductivity is 400 W/m-K, and specific heat is 0.4 J/g-K, and density is 9000 kg/m^3, and these values do not change over the range of temperatures
  • Air’s heat transfer coefficient is 20 W/m^2-K and does not change over the range of temperatures
  • The surrounding air does not change in temperature and remains at room temperature (25 C)
  • The input wattage is actually 120 W and not just random marketing bullshit
  • The copper block’s size is 4 cm x 4 cm x 16 cm (same as other comment)
  • The temperature within the copper block differs only by the vertical axis; it is assumed that temperature does not change if you move horizontally into the block

  Modeling conditions:

  • The block is sliced into 100 equally-sized slices, stacked vertically.
  • 120 W is input directly into the bottom slice
  • Heat transfer is modeled between each slice
  • Heat loss into the air is modeled for each slice (top slice has more heat loss due to more contact with the air)
  • Heat changes are calculated per millisecond
  • Final time is calculated is the total number of milliseconds it takes for the bottom slice to reach a temperature greater than 100 C
• ⁨Comment⁩ on ⁨Biotech startup Conception claims to have generated the first early human egg cells derived from stem cells, built entirely from scratch⁩ ⁨⁨3⁩ ⁨weeks⁩ ago⁩:

  Ignoring the ethics questions, this seems like a very bad idea based purely on the insane amount of safety questions involved that are likely unsolvable

• ⁨Comment⁩ on ⁨Roses⁩ ⁨⁨3⁩ ⁨weeks⁩ ago⁩:

  You’re confusing 2 different but related concepts. Blueshift and redshift does depends only on velocity. In the cosmological sense, redshift (the opposite of blueshift) occurs because everything is moving away from everything else due to the expansion of the universe, and so the distance of an object can be calculated based on how much redshift there is in the light. Basically, on a cosmological scale, distance and velocity are connected

• ⁨Comment⁩ on ⁨Copper⁩ ⁨⁨3⁩ ⁨weeks⁩ ago⁩:

  Hmm, I think at minimum calculus will need to be involved here. Because we can’t just assume that the heat is spread evenly in the copper - it’ll likely be hotter at the bottom, leading to thermal throttling earlier than expected. On the other hand, there’s going to be heat dissipation into the air, which will help cool the block somewhat

• ⁨Comment⁩ on ⁨Correlation implies causation⁩ ⁨⁨3⁩ ⁨weeks⁩ ago⁩:

  If I were to guess, probably heat stroke due to rising temperatures. Which, if true, would also be worsened by having more data centers

• ⁨Comment⁩ on ⁨That's some mighty fine lanes you got there!⁩ ⁨⁨3⁩ ⁨weeks⁩ ago⁩:

  That’s just how ERK looks like. It’s 44 kDa and 42 kDa, which makes it so that you either see 2 bands, or, more likely, you get 1 big fuzzy band

• ⁨Comment⁩ on ⁨Is there hope for humanity? Or are we just destined or designed to wipe our own selves out?⁩ ⁨⁨5⁩ ⁨weeks⁩ ago⁩:

  Humans will survive. Civilization will survive. That’s almost guaranteed. That was never really up for debate. The debate is whether civilization will survive in a form that we would consider to be dignified. Will we have political rights? Will we have privacy? Will we be in a democracy? Will we live as serfs in a technofeudal society? These are the questions that we need to ask.

  And they are important to ask because these are things that we can do something about. In my opinion, the elite intentionally promote doomerism, because people are more unwilling to fight back if they feel like the fight has already been lost. I believe that things can get better. I believe it despite everything going on because I have to. The worst thing you can do is to cede the future to the enemy.

• ⁨Comment⁩ on ⁨Can someone help me get Pygame working?⁩ ⁨⁨1⁩ ⁨month⁩ ago⁩:

  It’s not just about being in the right folder. You need to specify the path. If you just do python file.py or pip install whatever

  It will try to use system components, regardless of what folder you’re in. You’ll need to explicitly say, “use this specific venv version of python.” If you’re in the bin folder of the venv, you’ll need to use ./python file.py

• ⁨Comment⁩ on ⁨Can someone help me get Pygame working?⁩ ⁨⁨1⁩ ⁨month⁩ ago⁩:

  You’ll want to use a virtual environment. Once you have one set up, you can use pip to install modules. ie, you’ll want path/to/virtual/environment/bin/python pip install pygame

  Then, you can run programs through the virtual environment with the same method. ie, path/to/virtual/environment/bin/python path/to/game.py

• ⁨Comment⁩ on ⁨Rip lol⁩ ⁨⁨3⁩ ⁨months⁩ ago⁩:

  My understanding is, this is a very common cause of death among divers. The pressure doesn’t kill you, but it gets you stuck long enough that you suffocate

• ⁨Comment⁩ on ⁨You can do anything⁩ ⁨⁨3⁩ ⁨months⁩ ago⁩:

  I’m not sure “expendable labor” is really the most accurate description. My understanding was that the pharoahs hired skilled artisans and craftsmen during winter seasons in exchange for food. They didn’t use slaves to build the pyramids, to my understanding

• ⁨Comment⁩ on ⁨What would you do?⁩ ⁨⁨3⁩ ⁨months⁩ ago⁩:

  Sure, but learning tends to be easier when there’s a practical application to the things you’re learning

• ⁨Comment⁩ on ⁨Real⁩ ⁨⁨3⁩ ⁨months⁩ ago⁩:

  Oh, the spider-squids definitely will trigger your disgust response. At least they evolve into something nicer after a while

• ⁨Comment⁩ on ⁨Real⁩ ⁨⁨3⁩ ⁨months⁩ ago⁩:

  I think in part because speculating what the land looks like on an alien planet is actually really hard to do, and the vast majority of artists just wing it. With sufficient planning and rigor, alien planets should look normal.

  For instance, I think the landmass of Tira-292b looks pretty natural. It’s a hypothetical planet created for the Alien Biospheres project, a YouTube series that tries to build up an alien ecosystem as accurately to science as reasonably possible

• This bad boy here can fit so many still-adhered cells in itlemmy.world ↗
  Submitted ⁨⁨4⁩ ⁨months⁩ ago⁩ to ⁨science_memes@mander.xyz⁩ | ⁨1⁩ ⁨comment⁩
• ⁨Comment⁩ on ⁨If you're fond of restoring 30-year-old PCs, but then you see some old PC parts being obliterated by scrappers just to get small pitiful pinches of gold.⁩ ⁨⁨4⁩ ⁨months⁩ ago⁩:

  That seems the exact opposite of capitalism? I would assume capitalist propaganda encourages you to throw away old things and buy new. Preserving old things is antithetical to that

• ⁨Comment⁩ on ⁨Does Anyone Else get the thing where an otherwise nice-tasting cheese randomly tastes of vomit, or have I just been really unlucky and eaten a lot of mouldy/rotten cheese in my time?⁩ ⁨⁨4⁩ ⁨months⁩ ago⁩:

  I notice it when I eat cheese mixed with something acidic or spicy. Quite a discomforting taste but it doesn’t typically stop me from eating it anyways

• Make sure to put it back once you're done using itlemmy.world ↗
  Submitted ⁨⁨4⁩ ⁨months⁩ ago⁩ to ⁨science_memes@mander.xyz⁩ | ⁨1⁩ ⁨comment⁩
• ⁨Comment⁩ on ⁨Don't text me when i'm alkylating shit⁩ ⁨⁨4⁩ ⁨months⁩ ago⁩:

  Alkylation is a term in organic chemistry which means to form a carbon-carbon bond (simplifying, but accurate enough). This is actually somewhat difficult to do - it turns out that carbons are actually quite stable. For context, organic chemistry tends to work with a carbon “core” that doesn’t really change a ton, with a bunch of random other atoms stuck on the carbon core. And you typically mess with the other random atoms rather than the carbon core.

  However, in some semi-specific cases, you can manipulate a molecule to be unstable enough that it would be willing to break or form carbon bonds. Many forms of alkylation involve using a second molecule that contains a carbon bonded to a bromine or iodine (in this case, the molecule is C2H5Br). The end result is that your molecule (the one you want to modify) kicks out the other molecule’s bromine, and a new carbon-carbon bond is formed in its place. Basically, you’ve just fused the two molecules together.

  The meme is just showing several examples of C2H5Br being used as the “secondary molecule” and being fused onto things that make zero sense