elihu

51 ms·

661.
by elihu 4y ago
> You also got the initial product for free and you're using the time of the maintainer to review your things, for free. It goes both ways. The user isn't owed free stuff from random people on the Internet, but by the same tok
662.
by elihu 4y ago
I think the page sends a mixed message. The title is "fix it, fork it, fuck off" -- if I were a user, I would get the impression that the author might consider me rude or ungrateful if I were to submit a bug report without a corr
663.
by elihu 4y ago
I think there's another side to this, which is that if you're the maintainer of some open-source project and you actually want your software to be successful and widely used and generally to make the world a better place, you&#x27
664.
by elihu 4y ago
Seems to be manually actuated. "When the scoop is open the j-walker simply can't get run over; and sometimes that's more than he deserves." Seems like a product of that weird period of history where streets used to be ma
665.
by elihu 4y ago
Something I've wondered about is how do some of the newer vehicle designs fare when it comes to pedestrian safety? Presumably getting hit by a Tesla Cybertruck or Canoo Lifestyle Vehicle would be pretty bad, but are they just as bad a
666.
by elihu 4y ago
Interesting. There seems to be a spike around Christmas every year; I wonder if that's due to more people using phones rather than computers during holidays? Or the mix of Asian vs European/American traffic changes? There also s
667.
by elihu 4y ago
I suppose one problem might be selecting an appropriate coolant that doesn't dissolve the salt on contact. Presumably water would, but google says that salt doesn't dissolve in oil so maybe that's an option. Ideally you woul
668.
by elihu 4y ago
It seems like that might suggest a potential option in the search for appropriate materials to build the containment vessel and piping to hold in the salt: just make the whole thing out of salt. Anything that needs to be solid can have bui
669.
by elihu 4y ago
Maybe something closer to a real-world design would be better, like "space-optimized 6502 processors per millimeter^2" or "kilobytes of SRAM per millimeter^2". Ideally you'd have some sort of metric that includes po
670.
by elihu 4y ago
Even those kinds of modal interfaces with physical knobs/switches/buttons are often regarded as clumsy and aggravating compared to knob-per-function interfaces where everything control does just one thing and always that one thing
671.
by elihu 4y ago
I don't think the carrying capacity of superconductors is infinite. If you exceed the capacity, the superconductor "quenches" and ceases to be superconducting.
672.
by elihu 4y ago
I forgot to link the page with a big table of planets/moons and their gravities: https://en.wikipedia.org/wiki/Surface_gravity Anyways, Mars is an outlier with respect to the "about 1G" crowd, but it&#x2
673.
by elihu 4y ago
Maybe we'll see CDL requirements for more vehicle. I mean, it's a new thing that people can just go out and buy nine thousand pound cars that can do 0-60 in about 3 seconds (i.e. the EV Hummer) and I don't think society has
674.
by elihu 4y ago
It's almost 10% less. It's either a really weird coincidence or it says something interesting about planet formation that Earth, Venus, Saturn, Uranus, and Neptune all have almost the same gravity at the surface. (Of those five,
675.
by elihu 4y ago
Interesting. That requires an atmosphere though; it might work for the first stage of a launch from Earth, and maybe even for Mars. Once you're out of the atmosphere you'd need some other method of propulsion.
676.
by elihu 4y ago
> "In the future it is quite possible that an inflatable structure(s) can generate a magnetic dipole field at a level of perhaps 1 or 2 Tesla (or 10,000 to 20,000 Gauss) as an active shield against the solar wind." The article
677.
by elihu 4y ago
That's a good question, I don't know enough to answer. I suppose one way to mitigate the risk is to use the same kind of "emergency escape" systems that humans use during rocket launches. I.e. if the rocket fails to ach
678.
by elihu 4y ago
> The energy source itself presents issues. If you need a $50 billion fusion reactor that takes 20 years to build and a thousand people to maintain then that's a problem to bootstrap on Mars. ITER is a research facility, not a pract
679.
by elihu 4y ago
Here's one approach: https://phys.org/news/2021-06-catalyst-perchlorate-martian-s... Apparently there are also bacteria that consume perchlorates.
680.
by elihu 4y ago
The safety risk isn't necessarily an insurmountable obstacle; I could imagine the U.S. government being more likely to approve sending a nuclear reactor into space if it was NASA that was asking as opposed to a private company, but eit
681.
by elihu 4y ago
Interestingly the biggest reactors (mostly 2kw and a few 5kw) were deployed by the Soviet Union. Presumably they just didn't care about the safety risks. The risks weren't purely theoretical either. They had one nuclear-powered
682.
by elihu 4y ago
That was sort of how C.S. Lewis imagined Mars in Out Of The Silent Planet, before we really had a good idea of what Mars was really like. Most of the planet was unlivable without an air supply, but the valleys trapped enough air for plant
683.
by elihu 4y ago
Nuclear has the problem that you somehow need to hoist a reactor from the Earth into space, and putting nuclear materials makes a lot of people nervous. (What happens if the rocket launch fails and scatters radioactive debris?) An alternat
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by elihu 4y ago
I agree that an above-ground base is probably not realistic without substantial shielding. The illustration I'm inclined to interpret as marketing fluff. I don't think lava tubes are the only option, though -- they're just p
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by elihu 4y ago
I don't understand why "the base would have to be underground" is such a deal-breaker for so many people. I mean it would suck if your whole environment is like a typical basement, but these could be quite large living space
686.
by elihu 4y ago
Maybe what's needed isn't actually all that sophisticated, and is mostly old technology that's been used for decades? I mean, a Mars habitat could be something as simple as: find a lava tube, unroll a giant plastic bag, infla
687.
by elihu 4y ago
I've wondered about the same thing; if it suddenly became cheap to send stuff to Mars, where's all the infrastructure we'd supposedly be sending? Is it being developed right now, or has it been a distant goal for so long tha
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by elihu 4y ago
I think any search engine with smallish market share has an interesting advantage that few people are going to do search engine optimization targeting minor search engines. So, if one uses a different ranking algorithm, even if it isn&#x27
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by elihu 4y ago
I think the idea is that the inverter's job is to always be continually changing the current to the motor's stator windings such that you'd always have close to the optimal angle between the rotor and the magnetic fields crea
690.
by elihu 4y ago
It's also a model of guitar amplifier. https://en.wikipedia.org/wiki/Peavey_5150

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