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Cake day: June 25th, 2023

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  • Contramuffin@lemmy.worldtoScience Memes@mander.xyzlab toys
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    2 days ago

    Just yesterday I had a CO2 valve close on me during an experiment while I was away for a moment. It takes effort to turn the valve so it couldn’t have just shaken closed or something. The valve was in the corner of the room and was blocked off by boxes, so nobody could have accidentally bumped it. And, besides, nobody was in the room anyways. Before the experiment I made damn sure that the CO2 valve was open, and even looking through the computer records (which records the CO2) says that the CO2 valve was open until I walked away.

    I still have no idea how the valve could have closed on its own. Now, I’m not saying it’s a ghost, but I am saying that I cannot think of a single non-paranormal explanation. I’ve clearly angered the science gods and I would do well to sacrifice some more cells to the science gods to appease them


  • Science is like going down a Wikipedia rabbit hole. There’s always more things to do and more things to check out. At some point you just have to draw the line and say that enough is enough. Other scientists are likely to ask why you stopped where you stopped, and so saying that “it’s outside the scope of the paper” is basically the nice way of saying that you stopped because you felt like it






  • Because the ones that we hear about are the ones that are good enough to have even made it out of Japan. If a game was bad, it wouldn’t be localized to an English-speaking audience, and we wouldn’t even know it exists.

    It’s the same sort of thinking as asking why (insert media here) was better in the past. The answer is simple - good songs, games, movies, etc. tend to be more memorable, and so we remember the good ones and forget the bad ones. To put it briefly, there’s survivorship bias.




  • For me, everything is a belief unless it satisfies the following criteria:

    1. It is generally accepted as true among experts
    2. There is ample evidence that is both personally convincing and leaves no room for alternate interpretations (not the same as #1, since many fields have “commonly accepted knowledge” that is generally acknowledged as most likely true but has no evidence to back it up)
    3. It is specific enough that it cannot be interpreted in a way that is misleading

    I find that the one that trips up most people is #3, since some people speak in technically true but overly broad statements and the listener ends up filling in the gaps with their own biases. The listener leaves feeling like their biases have been confirmed by data, not realizing that they have been misled.

    In the end, according to my criteria, very little can be categorized as true knowledge. But that’s fine. You can still make judgements from partial or biased data or personal beliefs. You just can’t be resolute about it and say that it’s true.




  • I mainly do work indoors, so the brightness does not really matter that much to me. But as far as I can tell, the brightness is pretty normal for laptops - I don’t think it’s any brighter or dimmer than other laptops I’ve used in the past. According to this website that I found, brightness is 25 to 486 nits. Google search seems to say that average maximum brightness for laptops is somewhere around 300-400 nits.

    My understanding is that the screen is generally what eats up most of the battery on device, so if you plan to have brightness turned up, it might be difficult to find a laptop with a long battery life.




  • Yes, but that’s my point, you see. Because Arm historically has been used for mobile and small devices, there’s been a strong incentive for decades to emphasize power efficiency. Because x86 historically has been used for desktops, there’s been a strong incentive to emphasize power. It’s only been very recently that Arm attempted to have comparable power, and even more recently that x86 attempted to have comparable power efficiency.

    Sure, Arm is currently more efficient, but the general consensus is that there’s no inherent reason for why Arm must be more efficient than x86. In other words, the only reason it is more efficient is just because they’ve been focusing on efficiency for longer.

    Both AMD and Intel’s current gen x86 cpu’s are, from what I can tell, basically spitting distance away from Qualcomm’s Arm cpu’s in terms of battery life, and rumor has it that both x86 companies should be able to match Arm chips in efficiency by next gen.

    So if efficiency is a priority for you, I think it’s worthwhile to wait and see what the cpu companies cook up in the next couple of years, especially as both AMD and Intel seem to be heavily focused on maximizing efficiency right now




  • Kubuntu on Framework 16 AMD 7000 series here. Sleep is horrible - definitely drains your battery. Bag heats up, and I estimate maybe a 1% drain per hour. I’ve enabled hibernate though I rarely use it.

    Battery is alright but not great. I get maybe 2-3 hours of active, light use from full battery.

    No compatibility issues that I’ve noticed, though, of course, Linux has its fair share of minor non-hardware-related bugs.

    Camera is serviceable but not amazing. Not sure about microphone but I assume the same thing. Speakers are somewhat odd in that the speakers are pointed to the side rather than toward the front, but again - serviceable.