jacobolus

5 ms·

61.
by jacobolus 2mo ago
I think the worldwide disruption of the pandemic melted people's brains, and the recent surge in the anti-vax movement is a symptom. Along the lines of: if all this bad stuff happened and my life was significantly harmed, it must be s
62.
by jacobolus 2mo ago
The owner of a book doesn't owe anything to a random future person who picks it up from their estate sale or whatever. Vanishingly few books are irreplaceable enough to need to be treated as special relics to carefully preserve for pos
63.
by jacobolus 2mo ago
The basic problem is that to get to the objects you mention here is at least 3 or 4 years of full-time study away from the kind of math people learn for a typical college degree in science or engineering. If you really want to understand th
64.
by jacobolus 3mo ago
The big problem I have with Axler's presentation of the SVD is that it's backwards. It leads with a bunch of completely dry and technical minutiae written formally, loads students up with tedious and confusing technical exercises
65.
by jacobolus 3mo ago
That's all well and good, but you also shouldn't excuse authors for not providing context, motivation, or explanation under the theory that the students should really be figuring out the whole subject from scratch for themselves.
66.
by jacobolus 3mo ago
You can represent any arbitrary colors using RGB values for whatever "R", "G", and "B" primaries you like, they just might not fit in the range [0, 1]. (At least, under the strong assumptions we make in color m
67.
by jacobolus 3mo ago
Really? I find the part about the SVD in Axler's book extremely unhelpful, big blobs of opaque formulas and jargon with next to no explanation or context that basically require either knowing the topic fully beforehand or a huge amount
68.
by jacobolus 3mo ago
Housing has gotten much more expensive in many places, and jobs less stable.
69.
by jacobolus 3mo ago
Scott Perry didn't present any evidence for those claims. Ideologically he is opposed to the humanitarian work USAID does around the world, and he cheered as Elon Musk dismantled the agency. Perry was also one of the key figures in the
70.
by jacobolus 3mo ago
In practice what happens is that on average the tool-user's wages go up slightly but most of the jobs in the field are eliminated, and the resulting large profit mostly goes to managers and financiers.
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by jacobolus 3mo ago
Each congressperson's staff gathers all of the comments they get, counts them up, and reports back to the congressperson, passing along anything they think would be useful information; if you write a clear and careful letter about an o
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by jacobolus 4mo ago
One is people's lived experience: "Hard-working families immigrate to a land of better opportunity and build a life for themselves, integrating as upstanding members of the community." The other is nativist propaganda: "
73.
by jacobolus 4mo ago
Scholars aren't supported by sales of their published work, but by teaching/research salaries, much of the money for which comes from the public via government grants. Musicians by and large aren't supported by record sales,
74.
by jacobolus 4mo ago
One thing to keep in mind is that many (most?) of the books and papers in these archives are decades old, usually no longer in print, make zero or vanishingly small amounts of money for their original creators, are sometimes only physically
75.
by jacobolus 5mo ago
That sounds plausible. Most of the features are kind of gimmicky bolt-ons added piecemeal and not really integrated with each-other. They make for cool 10-second demos but then most users ignore them because they aren't part of a coher
76.
by jacobolus 5mo ago
Plenty of students succeed just fine without owning a graphing calculator (they can spend a few minutes learning the handful of test-relevant features and borrow one for the exam). Thankfully as of this year there is also a Desmos option.
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by jacobolus 5mo ago
Ideally the tests would not require external tools at all. There's nothing that needs to be tested in the context of a high school course that can't done with pencil and paper.
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by jacobolus 5mo ago
NEET means "Not in Education, Employment, or Training". The stereotype is an unemployed young adult living with their parents and playing video games all day.
79.
by jacobolus 5mo ago
They had different models with different capabilities. As they made minor style changes, they bumped the numbers slightly. The 81–82–83–84 were basically the same concept, as were the 85–86. The 89 and 92 were higher-end models. The 80 and
80.
by jacobolus 5mo ago
You should try to avoid continuous static load on your muscles, especially the smaller ones. So you should find a typing position where that doesn't happen. You also want to use your muscles in the strong and comfortable part of their
81.
by jacobolus 6mo ago
> the monitor should be at eye level vertically This is slightly misleading advice. The ideal place for the display has the top of the display at roughly eye level, or for a very large display maybe slightly above, which puts most of
82.
by jacobolus 6mo ago
Having the desk low, the chair high, or putting a laptop on your lap is okay. Having the desk or table "high" (i.e. at normal height for writing with a pen or eating a meal) is generally worse but not an insurmountable problem. In
83.
by jacobolus 6mo ago
> save our wrists If your wrist is in contact with the edge of the laptop while you are actively typing, then your typing style has a good chance of giving you RSI. You'd be better off trying to fix that than trying to make the fa
84.
by jacobolus 6mo ago
Magnus doesn't "dictate the rules of the game or the platforms by which it is played", so I'm not sure what your point is. You think Magnus should be forced to participate in chess events he doesn't enjoy / doe
85.
by jacobolus 6mo ago
Magnus "drives meaningful outcomes" because he's really good at chess and members of the public enjoy watching him play, so various chess-related businesses will pay him money for sponsorship. How do you propose to "not
86.
by jacobolus 6mo ago
There are LED lamps which have a "warm dim" feature so that the appear oranger as you reduce the brightness.
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by jacobolus 6mo ago
Providing a day-like view of the scene should not be the primary goal of nighttime lighting.
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by jacobolus 6mo ago
The sodium lamps are in fact safer for driving, because they preserve drivers' night vision, which improves visibility into the shadows, and because they cause less glare. What they aren't good for is LED manufacturers' botto
89.
by jacobolus 6mo ago
It's not especially close to the peak sensitivity of the human eye (in either bright or dim conditions), but that's entirely okay. The goal should be to not affect people's level of dark adaptation. If you use shorter (&quo
90.
by jacobolus 7mo ago
Yes, that's the point. It will only break down in water when the water is hot. Here's the paper https://link.springer.com/article/10.1007/s11696-022-02286-x

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