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Joined 1 year ago
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Cake day: August 4th, 2023

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  • Codex@lemmy.worldtoUS Authoritarianism@lemmy.worldLegalization
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    1 day ago

    I agree. It shows lack of faith in your work and your audience. It also takes away the audiences’ sense of “getting it” when they look and notice, which makes your audience feel smart and in conversation with you.

    Reminds me of those little panels beside paintings in a gallery that sometimes tell you way too much about what the artist was thinking. The work itself is supposed to be communicating, if you need supplemental material then you may have failed somewhat in the original work.


  • I hadn’t read there were so many angles on the word. I had heard it came from Joyce and never dug deeper. I’m surprised that you quoted a passage from Oxford but didn’t check the OED. Joyce being Irish, the OED would better document the English he’d have been using. Merriam-Webster and derivatives are American English dictionaries.

    From the OED:

    Honestly, I’m just surprised physicists don’t have a gif/jif thing going on with quork/quark pronunciation.













  • Super Castlevania 4 is the best of those early ones. Rondo is pretty good also but very hard. People find charms in the first 3 but they’re a bit rough.

    If you prefer the Symphony lineage, the gameboy collections are very good. Not every game is brilliant but it’s amazing value.


  • Codex@lemmy.worldtoScience Memes@mander.xyzBurning Up
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    6 days ago

    I believe the Fahrenheit scale was originally set up for 100° to be human body temperature. We’re just built colder now I guess? I had to look up what zero was and apparently he originally set it at the coldest the air had ever been around his village, but later had to standardize it and so cooked up some brine that froze at 0°.

    I would propose that 100 should be calibrated around the wet bulb temperature, which I think is around 105°F but varies with humidity. That’s the temperature where sweating doesn’t cool you off any more, so any temperature 100 or more is deadly to most people. I like 0 being freezing for water, seems sensible and is also a good “prolonged exposure to this or lower will kill you” cutoff point.




  • Codex@lemmy.worldtoScience Memes@mander.xyzVectors Part 2
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    7 days ago

    Start with a list of numbers, like [1 2 3]. That’s it, a list of numbers. If you treat those numbers like they represent something though, and apply some rules to them, you can do math.

    One way to consider them is as coordinates. If we had a 3-D coordinate grid, then [1 2 3] could be the point at x = 1, y = 2, and z = 3. You could also consider the list of numbers to be a line with an arrow at one end, starting from the point at [0 0 0] and stopping at the other point. This is a geometric vector: a thing with a direction and a magnitude. Still just a list of numbers though.

    Now, what if you wanted to take that list and add another one, say [4 5 6], how might you do it? You could concatenate the lists, like [1 2 3 4 5 6] and that has meaning and utility in some cases. But most of the time, you’d like “adding vectors” to give you a result that maps to something geometric such as putting the lines with arrows end-to-end and seeing what new vector that is. You can do that by adding each element of the 2 vectors. And, almost magically, the point at [5 7 9] is where you’d end up if you first went to [1 2 3] and then traveled [4 5 6] further. We made no drawings, but the math modeled the situation well enough to give us an answer anyway.

    Going further, maybe you want to multiply vectors, raise them to exponents, and more? There are several ways to do these, and each has different meanings when you think about them with shapes and geometry.

    But vectors are just lists of numbers, they don’t have to be geometric things. [1 2 3] could also represent the coefficients of a function, say 0 = 1x^2 + 2x + 3(x^0). You can still do the same math to the vector, but now it means something else. It models a function, and combining it with other vectors let’s you combine and transform functions just like if they were lines and shapes.

    When you get into vectors beyond 3 elements, there’s no longer a clean geometric metaphor to help you visualize. A vector with 100 elements can be used just as well as one with 2, but we can’t visualize a space with 100-dimensions. These are “vector spaces” and a vector is a single point (or rather, points to a point) within them.

    Matrices are similar but allow for deeper models of more complex objects.



  • I came into the industry right when XML fever had peaked as was beginning to fall back. But in MS land, it never really went away, just being slowly cannibalize by JSON.

    You’re right though, there was some cool stuff being done with xml when it was assumed that it would be the future of all data formats. Being able to apply standard tools like XLT transforms, XSS styling, schemas to validate, and XPath to search/query and you had some very powerful generic tools.

    JSON has barely caught up to that with schemes and transforms. JQ lets you query json but I don’t really find it more readable or usable than XPath. I’m sure something like XLT exists, but there’s no standardization or attempt to rally around shared tools like with XML.

    That to me is the saddest thing. VC/MBA-backed companies have driven everyone into the worst cases of NIHS ever. Now there’s no standards, no attempts to share work or unify around reliable technology. Its every company for themselves and getting other people suckered into using (and freely maintaining) your tools as a prelude to locking them into your ecosystem is the norm now.