mturmon

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571.
by mturmon 6y ago
Note to armchair troubleshooters nearby: It seems to be a passthrough connection from one of these: https://www.tp-link.com/us/home-networking/powerline/tl-pa70... There are two types of fan motors, AC and D
572.
by mturmon 6y ago
But to mock toilets in the way you have just done is to miss the point. Billg is such a nerd problem solver (and I mean this in the most positive way) that he’s capable of investing and marshaling huge engineering focus on this outcast subj
573.
by mturmon 6y ago
Yeah, people should be aware that Newsweek magazine has itself died and been brought back. It’s just a name at this point, I don’t think it retained any editors or writers from its earlier incarnations. For more on what it looks like at th
574.
by mturmon 6y ago
AAAS is a non-profit, and Science subscriptions are really cheap — like US$100 for a year of a weekly magazine. They are not money-grubbers, and they are very distinct from Springer, Elsevier, and Nature in this regard. I think they legi
575.
by mturmon 6y ago
The topic resists summary. Yes, bill will be scary if paying out of pocket. Health care is often tied to employment (you or spouse). There are different insurance options, even when employed. A good plan will cover everything but a rela
576.
by mturmon 6y ago
What a tendentious blog that is! Here's another one from April on how COVID is no big deal: https://www.manhattancontrarian.com/blog/2020-4-15-what-is-t... Doesn't it seem like the author is reasoning backwa
577.
by mturmon 6y ago
In your original comment, you literally said pumped hydro (along with others) was an imagined technology. This is widely known to be false, and I wrote to correct that. > What is imagined is that it can be expanded at scale... No power g
578.
by mturmon 6y ago
Pumped storage is not an imagined technology: https://en.wikipedia.org/wiki/List_of_pumped-storage_hydroel... It’s actually a really great idea. Here’s a white paper that’s especially relevant for California (forgive
579.
by mturmon 6y ago
The China hypothetical is not really helpful, is it? Because it didn't happen, people will just impose their own preconceptions on it.
580.
by mturmon 6y ago
One place where brown dwarf (BD) and exoplanet science overlap is atmospheric characterization by spectral methods. If you get reasonably well-resolved spectra from the BD, you can invert to obtain information about its atmosphere's c
581.
by mturmon 6y ago
Great 1900s truss construction. But what a visual blight on the riverfront and the city streets. I wonder what the town meetings looked like? Did they have NIMBYs? Did Chicago have NIMBYs when the ell was being built?
582.
by mturmon 6y ago
> If the email program would pop up a warning... A moment's thought should illustrate that "pop up a dialog box to ask permission" isn't really a fix for a hole like this. It has conspicuously failed in the past. I t
583.
by mturmon 6y ago
C-L-I. But steering the sentence to say "command line" might be even more idiomatic. That is: "It would be fastest to delete that directory tree from the command line" would be preferred to: "It would be fastest to
584.
by mturmon 6y ago
It's also worth saying that there's an emerging discipline devoted to formalizing and developing tools for this kind of problem (complex computer models of real-world systems, say). One decent place to start is this National Acade
585.
by mturmon 6y ago
You’re a little out of date! SoHO is largely shut down, has been for a decade now. Its tent pole instruments were replaced by SDO in 2010. ( https://sdo.gsfc.nasa.gov/mission/ ) Both of these are NASA, not NSF, observ
586.
by mturmon 6y ago
In this case, it's a complex story. NSF has a collection of astronomical observatories (optical and radio). Some of them have decades-old equipment, and keeping everything operating will eventually preclude building anything new. So,
587.
by mturmon 6y ago
Your reply here saddens me. I suggest you look up Rob Pike and reconsider some of your hypotheticals about what he knows about. ( https://en.wikipedia.org/wiki/Rob_Pike )
588.
by mturmon 6y ago
Indeed, the fact that Mercury is not tidally-locked with the Sun was discovered using the Arecibo radar telescope. If I remember correctly, they used the Doppler shift imparted to the radio wave --which expresses differently across the w
589.
by mturmon 6y ago
> The question is, was the policy created with the intent of racism. This sounds reasonable, but this is not how US Federal law works. One key concept is strict scrutiny [1] -- when a regulation that infringes fundamental constitutiona
590.
by mturmon 6y ago
I viewed what might be the same course online. It’s a great class: https://oyc.yale.edu/astronomy/astr-160
591.
by mturmon 6y ago
Avogadro’s number is very large.
592.
by mturmon 6y ago
The CPM process you describe sounds similar to so-called PMV-11 steel, which is used in some high-end chisels and woodworking planes. It’s not just marketing, several professionals who are mostly impartial have said its noticeably better t
593.
by mturmon 6y ago
I reject the contrived pity, and note that you haven't been paying attention to what I've written: I read a lot on this topic - as the links indicate.
594.
by mturmon 6y ago
Even tradespeople (like union electricians) have this same dispute. In the US, one of the favored brands in the trade is Milwaukee Fuel 18v. Many electrical pros swear by these tools, even to the point of mildly judging people who use con
595.
by mturmon 6y ago
You're right. Love your example. HN does not have much actual collective expertise in this area (say: governance structures for technical research), but HN is solution-oriented, so ideas will be proposed. They just tend to be not ver
596.
by mturmon 6y ago
> Readout noise can be cancelled by taking so called bias frames. That’s not what bias frames [1] are doing. Bias frames measure a systematic effect in the conversion of stored charge to a digital number in the CCD device. You can the
597.
by mturmon 6y ago
Not an actual astronomer, but somewhat aware of detector issues for space-based telescopes. Typically, you want to use one single integration time, if possible. Doing so can limit readout noise, for one thing. (Note that ground-based astr
598.
by mturmon 6y ago
Your comment jogged my memory. Ulysses, a cleverly-named solar-polar mission, used a deployment from the Shuttle, and a gravity assist from Jupiter, to reach an inclination of 80 degrees. From https://www.cosmos.esa.int/web
599.
by mturmon 6y ago
Just to emphasize one point you made: It appears the first companion planet (160 AU) was originally detected using direct imaging last year (preprint [1] is dated Dec 2019, see sec. 4 for methods). And I guess the second one was announced i
600.
by mturmon 6y ago
> ESO ... has taken the first direct image of a planetary system around a star like our Sun, located about 300 light-years away... > The two gas giants orbit their host star at distances of 160 and about 320 times the Earth-Sun distan

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