mppm

12 ms·

31.
by mppm 1y ago
Presumably they mean that the CO2 captured in the wood of the tower can offset the manufacture of blades and other components at some point in the future. Not that reaching net zero in wind power is an important milestone or anything. From
32.
by mppm 1y ago
For all those who are peeved by "stronger than steel" claims: No it's not. Or only in an extremely specific, not very practically relevant way. Their Nature paper [1] has the details, but let me summarize: Tensile strength a
33.
by mppm 1y ago
I think at this point it would be preferable for the government to take over the payment infrastructure directly. This is often seen as dystopian, but it's a dystopia that has already come to pass for the most part. If we made it offic
34.
by mppm 1y ago
It's not illegal. Even though having access to banking is absolutely essential to every imaginable business, bank accounts are still treated as a voluntary business relationship by regulators. Some protections exist in the EU for indiv
35.
by mppm 1y ago
> Any traditional local bank will usually speak with you first before opening an account. In contrast, neo-banks open accounts quickly and then rely heavily on automated fraud prevention systems, since manual reviews are costly. Maybe th
36.
by mppm 1y ago
Unfortunately, this is the reality of modern business banking, and Wise is not unique in this. You can find similar reports about most major EMIs and a fair number of banks. Banks have basically become an inefficient and unfair branch of la
37.
by mppm 1y ago
Everything you suggest is in fact part of standard (and mandatory) procedures. If a pilot makes one serious error, you should look closely at the circumstances. If the pilot makes ten in sequence, he probably is, as GP put it, a moron who s
38.
by mppm 1y ago
What you say is true, but I would still disagree with the overall assessment. To put it bluntly, it is the pilot's job to be thrown into unexpected situations. Modern airliners mostly fly themselves, and the pilots are there to a) coor
39.
by mppm 1y ago
This is an extremely long and unfocused analysis of what was a fairly straightforward incident. Following the lightning strike, which created a dangerous, but manageable situation, the main contributors to the catastrophic outcome were (rou
40.
by mppm 1y ago
Key distribution is (as always) an important, but solvable problem. There are some tradeoffs involving centralization vs cost of replacement, but those apply generally, not just in this particular case. As for replay attacks, that's wh
41.
by mppm 1y ago
Re price tag: you can buy a smartphone for 100$. Surely it is possible to mass produce cheap key fobs with send/receive capability and a tiny crypto module. Re power: Key fobs already do some form of crypto and broadcast. Adding recept
42.
by mppm 1y ago
I'm confused why this is still an unsolved problem. A simple cryptographic challenge with pre-shared keys + button press ought to make key fobs perfectly secure for all practical purposes. Is there something I'm missing here?
43.
by mppm 1y ago
From what I can tell, they didn't. The theoretical basis for it is the Linear No-Threshold Model, which is, bluntly put, garbage. The empirical evidence seems to come mostly from so-called case-control studies, which are, bluntly put,
44.
by mppm 1y ago
Please take a look at slide 11 of this presentation [1]. Stopping power and Bragg peak (slide 30) are also relevant concepts. What you are describing applies to photons and neutrons, but not to charged particles. 1. https://indic
45.
by mppm 1y ago
This is somewhat inaccurate from a physical perspective. What you say would be applicable to the attenuation of gamma rays, which is governed by low-probability interactions and is therefore exponential. But alpha particles, being charged a
46.
by mppm 1y ago
Yes, comptime evaluation is restricted to a configurable number of back-branches. 1000 by default, I think.
47.
by mppm 1y ago
Yes, I've seen such research, but I am highly skeptical, to put it very mildly. This actually being the case is simply implausible from the physiological perspective, considering the very high (and constantly changing) concentration
48.
by mppm 1y ago
Very cool! It would be cooler still if this technique could be used for future VR technology, creating full immersion by targeting all photoreceptors individually. But unfortunately... the optics of the eye does not actually allow individua
49.
by mppm 1y ago
Honest question: Why would you want to? The average CO2 concentration in your lungs is something like 20,000 ppm, so it doesn't matter much whether ambient CO2 is at 200ppm or 800ppm. Other aspects of air quality do matter, but I'
50.
by mppm 1y ago
Learned something new today, thank you! If I understand correctly, the Hermite functions are the eigenfunctions of the Fourier Transform and thus all have this property -- with the Gaussian being a special case. But sech(x) is doubly intere
51.
by mppm 1y ago
This submission is not technically inappropriate and flagging it would be an abuse of that feature. It's just very low quality and very surprising that it made #1 on HN.
52.
by mppm 1y ago
1) Why is this even on HN? Some guy complains about third wave coffee on his trashy, possibly AI generated, blog. Very interesting. 2) Since people take this seriously for some reason: Fine coffee is neither a hallucination, nor a theater p
53.
by mppm 1y ago
I get that. But if you want to work in relative isolation, would it be too much to ask to not advertise the project publicly and wax poetic about how productive this (unavailable) language makes you? Having had a considerable interest in Ja
54.
by mppm 1y ago
Jai's perpetual closed beta is such a weird thing... On the one hand, I sort of get that the developers don't want to waste their time and attention on too many random people trying to butt in with their ideas and suggestions. On
55.
by mppm 1y ago
Very unlikely. Here's a back of the envelope calculation: The human energy requirement per day is about 9MJ. This corresponds to about 500g sugar (or starch), which releases around 750g CO2. Metabolic activity is reduced at night, so 2
56.
by mppm 1y ago
Maybe they've changed it in the past hour, but as I write this comment the 25$ plan is called "Ultimate" and promises unlimited search, but not unlimited assistant. I agree about the need for appropriate wording and advertisi
57.
by mppm 1y ago
I'm not much of an expert, but maybe this can be useful: AlN is a somewhat widely used insulating substrate that is chosen where sapphire is insufficient (~40 W/mK), but BeO (~300 W/mK) is too expensive or toxic. The intrinsi
58.
by mppm 1y ago
> Whose gonna pull the trigger on beryllium oxide mounting packages first? Nobody, presumably :) Why mess with BeO when there is AlN, with higher thermal conductivity, no supply limitations and no toxicity? Edit: I've just checked,
59.
by mppm 1y ago
> The "real" point of an argument is not to persuade the other side (though that is what you aspire to nonetheless) but to exchange views. Maybe this is just a matter of definitions, but for me the point of an argument is to co
60.
by mppm 1y ago
You underestimate how insane the power requirements of a high-g launch are. Placing one ton into orbit requires a rocket with close to 1GW peak power output (this is only a very rough figure that depends on mass ratio, thrust and exhaust ve

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