Contramuffin
@Contramuffin@lemmy.world
- Comment on How does one figure out what to do, after getting out and done with high school? 1 week ago:
High school really doesn’t expose you to many, if at all, real careers. I essentially lucked into the career that I’m in. I wouldn’t be that concerned that you don’t really have any ideas for a career that you’d be interested in - that’s pretty expected.
That being said, you probably should find some interests. Do some volunteering if you’ve got no idea what to do. There’s a lot of good community work that needs to be done, and it’ll expose you to many real careers
- Comment on Do jobs still do "shadowing" to learn the skills before you apply like welding or carpentry or computers? Or is it too much of a hassle for the person you are "shadowing" along with the company? 1 week ago:
Shadowing is very important for jobs where the outcome of failure is potentially harmful or costly. Biological research is done almost exclusively through an apprenticeship-like training system, and part of that system is that you shadow a mentor when you start. (You’ll also continue to work closely with your mentor so that they can continue to supervise you personally for a long while before you’re allowed to work on your own)
My understanding is that hospital or medical work is pretty similar in that regard
- Comment on Does the net positive of Gene Therapy out weigh the negative? How so? 2 weeks ago:
The potential alleviation of suffering is great, the potential suffering is also great. There’s a reason nobody gene edits humans (with one notable exception…), and it’s not because it’s hard to do, I’ll tell you that much.
It’s at least somewhat reassuring that all scientists (except the one notable exception who shall not be named) is taking their time to really understand the implications of the technology.
Gene editing is, like many technologies, a tool, and it must be subject to guidelines and regulations to ensure that it can only be used for good. That much, everyone agrees on. The question that people still need to grapple with is where the line is drawn between acceptable and unacceptable editing.
I will also point out that there are ways to influence your biology without messing with your DNA. And similarly many ways to mess with your DNA that do not carry over to the next generation. All of these fall under the umbrella of gene editing but don’t fit the popular concept of gene editing (germline editing). These techniques are much less ethically ambiguous and many are already being used to help people. Here’s a fun video where a guy transduces a gene into himself to cure his lactose intolerance. It’s gene editing by technical definitions but not the type of gene editing that you’re probably thinking of.
- Comment on academic jargon 1 month ago:
To be clear, most scientists struggle with reading many papers. So it’s not a problem with technical specificity, it’s a problem with fundamentally bad writing.
In science, unparseable writing mainly comes from the fact that people aren’t told that you need to prioritize being clear. It’s the principle behind the curse of knowledge - it’s easy to forget that people don’t know what you know and don’t think the way you think. So you end up writing in a way that only you can interpret. It takes extra effort and time to read back what you wrote and think about how other people might understand what you wrote. But that’s time that a grad student could otherwise spend being further exploited, so QA ends up falling to the wayside
- Comment on “Tf???” 1 month ago:
To someone who is knowledgeable about this: how important is a fibula to the actual strucural integrity of the body?
- Comment on Anon learns about cars 1 month ago:
Technically the car is powered by the movement of the exhaust fumes… Just not in the way that OOP thinks, I would presume
- Comment on How do you defy an immersive sim? 2 months ago:
My personal line in the sand is, “do I feel like the developers wanted me to use the solution that I used?”
In my opinion, developers can design multiple solutions to a problem and it still may not count as an immersive sim. Because the key characteristic of an immersive sim is that there must be sufficiently complex interacting systems and mechanics that you can come up with your own solutions, independent of what the developers intended
- Comment on Philistines 2 months ago:
I have no idea what any of these words mean, but I like these funny words
- Comment on Meal Replacement Drink Suggestions? 2 months ago:
I’ve tried Soylent and Huel. I definitely prefer Soylent. Huel has a strong flaxseed flavor, which makes it taste strongly like a protein shake. In my experience, though, Soylent isn’t that good for chugging. It’s pretty thick and is better drank in sips over a long period of time
- Comment on Is it reasonable to tell a person you once loved about the fact years later? 3 months 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? 3 months 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? 3 months 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? 3 months 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 3 months 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 3 months 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 3 months ago:
Python
- Comment on Copper 3 months 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 months ago:
See, I thought about doing that, but then I realized: I don’t actually want to do that
- Comment on Copper 3 months 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 months 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 months 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 months 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 months 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 months 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 months 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 months 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? 4 months 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? 4 months ago:
It’s not just about being in the right folder. You need to specify the path. If you just do
python file.pyorpip install whateverIt 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? 4 months 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 pygameThen, 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 6 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