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Cake day: May 29th, 2024

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  • A file is an arbitrary string of bytes. Removing the ability for the user to handle them like this is so obtuse.

    Per the article:

    According to the BTRON3 specification, the first two halfwords of an application ID are the data type it applies to, and only the third distinguishes rival handlers for the same type. When a document contained writing, a table, and a figure, opening those parts made the system launch each one’s registered handler to draw its own content inside the parent document’s window. If no handler exists, or the handler fails to draw, the system strikes a diagonal line through the region where the content should have been.

    That’s a window manager with application/file associations, with the ‘window’ that the application draws to being embedded within a hypertext document. So, you’d be able to attach arbitrary hypertext to a file and when you open it the window manager presents that information along with the application window. That’s not any less flexible or more limited than any other desktop OS.

    EDIT: now, it sounds like you could embed multiple ‘windows’ within the same document, and maybe do something with transclusion, but I haven’t read enough about how BTRON worked to say much about that. Still, that doesn’t fundamentally change what I wrote above.


  • an LED bright enough to lit up your room clearly has maybe around 30 watts

    30 watts for 1600 lumens (about the brightness of two 60 watt incandescent bulbs) would be about 53 lumens per watt. Which would be pretty abysmal for an LED light.

    The bulbs I run output 200 lumens per watt, or 4 watts per bulb to output 800 lumens. In my kitchen I run two of them (so, 8 watts total), and that’s plenty bright.

    Those are particularly high quality LED bulbs though, and its more common for them to be less efficient than that. In my opinion its very unfortunate that crap bulbs with efficiencies of less than 100 lumens per watt (and correspondingly low lifespans) are so common. But even those would have higher lm/w ratings, probably around 70-80.





  • Horsepower is just a fake number derived from torque.

    I don’t really disagree with your earlier comment, and I agree that the shape of the torque curve matters a lot when it comes to the practicalities and experience of driving a vehicle, but, uhh, what you said here is just completely wrong.

    Force and speed (torque and RPM) are both components of power (horsepower is torque * RPM / 5253). Saying that the RPM, or time component, of that equation doesn’t matter is the same as saying it wouldn’t matter if it takes 10 seconds or 10 years for a crane to lift a load at a construction site, since its lifting the same weight either way.

    To put it another way, with a long enough lever I can exert enough force to start a passenger train rolling down the tracks with just my own arms (and in fact, people do something similar using compound levers). But what that doesn’t let me do is move a passenger train at 200 MPH like high speed rail lines do. There is no arrangement of gears or mechanical linkages that will let a single human being power a high speed rail line like that, the human body does not have enough power output.









  • drosophilato196Jimothy rule
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    1 month ago

    The conservative mind can’t understand that if you add up a bunch of little things it can become a big thing.

    One person throwing one piece of trash on the ground doesn’t do that much, but if dozens of people do it then the area starts to look like shit. Take a conservative and show them such an area and they’ll agree it looks like shit. Ask them if they want the place they live to look like that and they’ll say no. But try to explain that’s why they shouldn’t litter and it doesn’t click.

    That’s not to say “oh, they’re actually super nice and its just this one mental hitch that’s causing them to act like shitheads”. No, they’re extremely selfish, mean spirited, and immature. Its just that they’re also very stupid and will act against their own interests because they can’t comprehend this concept.

    See: wearing masks during covid / trying to limit the spread, and herd immunity from vaccines. Or believing in “micro evolution” while thinking that “macro evolution” is impossible. Or global warming. Or even the idea that animals can go extinct. Or the idea that oil or coal could run out some day. You’d think, conceptually, a person could understand that if there’s demonstrably a finite amount of something (oil fields have dried up, mines run dry, and there are only so many of these things on the earth) and you keep taking chunks out of that thing then eventually it’ll run out. But somehow that chain of logic just doesn’t work. And things like nonlinearities, tipping points, or emergent effects and its just impossible.

    The only way stuff like that somewhat gets through their minds is by conceptualizing it as some kind of nefarious ‘plan’ by an enemy. Which is why conspiracy theories are so common on the right. Why do you see more gay people in media now than you used to? Well, in the conservative mind it can’t be because of complicated societal changes that took place over decades which eventually hit a tipping point in acceptance. No, obviously its some social engineering plan by some kind of powerful and shadowy elite.

    This is the Christian worldview too. Is the world the way it is because of a bunch of complicated interacting emergent processes? No, its Gods’s good plan vs Satan’s evil plan.

    EDIT: the thought process for the specific thing you’re talking about is that if capitalism does anything bad to you its because of a plot by crony capitalism / the illuminatii / the jews. The idea that capitalism as a system inevitability concentrates power into the hands of a tiny elite, and both selects for and incentivizes bastard behavior, relies on the mental ability to conceptualize a bunch of small things adding up into a big thing. Add in the idea that capitalism is just “human nature” / “the way things have always worked” and if there’s any problems its not the system’s fault, its the fault of one specific person or group.



  • If you consult the CROW manual for bicycle traffic, which is what the Netherlands uses as a guide for road design (and is where the design you’re talking about came from), you will see that there are certain constraints on when various designs should be used:

    The street’s speed limit and motor vehicle traffic volume have to be low enough, and it matters what category the road has been classified as in both the motor vehicle traffic network and the bicycle traffic network. Since instead of just thinking about roads individually, their place in the larger system is considered:

    (This is the bicycle network of Amsterdam)

    The width of the throughway and whether there is enough room to fit the infrastructure for a given combination of network links within it is also important. That’s another reason why it’s best to plan the networks holistically, to make the best use of all available space on multiple adjacent roadways.

    Of course if you decrease car traffic volumes and speeds to a low enough level (by making other transit modes more attractive, making more of the urban area mixed use, etc) you can start using the higher categories in the above chart more. But the standards in the Netherlands are not so simple as “just put some paint down anywhere and it’ll work so long as the drivers are educated”. And that’s without even getting into how they design roads to enforce their own limits on speed and traffic volumes, using things like chicanes and modal filters. So, some amount of effort goes into creating the conditions that make such a design safe, rather than the drivers just deciding to do it themselves.




  • drosophilato196cleaning rule
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    1 month ago

    You can buy big bottles of pure limonene online sold as a cleaner.

    Its way cheaper per unit than those tiny bottles of essential oils, which shows how inflated the price is for a lot of them.