FourHand451

7 ms·

31.
by FourHand451 4y ago
Dissipating heat in a vacuum is certainly more difficult, since it must all be done through radiation instead of convection. It follows that thermal storage would then be more efficient in a vacuum too. I couldn't say whether it would
32.
by FourHand451 4y ago
>our reactor produces iron, silicon, and aluminum through molten regolith electrolysis, in which an electrical current separates those elements from the oxygen to which they are bound. Oxygen for propulsion and life support is a byproduc
33.
by FourHand451 4y ago
How exactly is he working toward free speech being a driving force? From what I can tell, he's just banning different people.
34.
by FourHand451 4y ago
Can you say more about these metrics, for those of us who don't know?
35.
by FourHand451 4y ago
This year fit the pattern quite well. I heard on the radio that there were 20' waves on Superior the other day.
36.
by FourHand451 4y ago
I think one aspect of getting into "vintage" technology in one way or another (vinyl, mechanical watches, fountain pens, etc.) is becoming familiar with the reasons that people developed newer approaches. In my experience, it&#x27
37.
by FourHand451 4y ago
Oil/gasoline mixture. No requirement that there needs to be lead in the gas, as far as I've ever heard.
38.
by FourHand451 4y ago
This was my guess as well, but if it's correct, I don't understand why the Hubble images show 4 spikes. I thought Hubble's main mirror was circular, not a square.
39.
by FourHand451 4y ago
Typically you don't eat the rind on this kind of cheese.
40.
by FourHand451 4y ago
I think that's probably true, but I do think it's useful to continue testing that conclusion. For example, if we looked somewhere and didn't find microplastics, we could then start trying to figure out why.
41.
by FourHand451 5y ago
I don't think they're saying they can learn them all. Just the next one, if it can be applied to an interesting problem.
42.
by FourHand451 5y ago
There are a few: https://en.wikipedia.org/wiki/Lockheed_bribery_scandals
43.
by FourHand451 5y ago
This logic was one of the reasons the Shuttle/Mir missions happened as well.
44.
by FourHand451 5y ago
https://benklaas.com/jqmcbp/ It's a comical March Madness bracket tournament. The winner gets a candy bar, and everyone gets some lovely funny email updates as the month goes on. In addition to human competitors,
45.
by FourHand451 5y ago
I don't think you're necessarily wrong, but how does putting a train in a vacuum tube solve the problems we currently have with passenger rail?
46.
by FourHand451 5y ago
Count your blessings, my friend.
47.
by FourHand451 5y ago
"I wouldn't be caught in a superposition of dead and alive sitting on his lap" :)
48.
by FourHand451 5y ago
I mean, is there something you'd suggest they should have done differently? I'd imagine they gave it as much fuel as they possibly could while meeting all of the other design goals. Is is possible you're more disappointed wit
49.
by FourHand451 5y ago
> arguably stagnant (except recent developments like reusable boosters) developments since then What about Voyager, ISS, Hubble, Mars rovers, Mars helicopter(!), and Cassini/Huygens missions? There's more to do in space than ju
50.
by FourHand451 5y ago
Setting aside the debate over whether it's the right thing to do or not, is it feasible to enforce a ban on mining? Genuinely just curious, as I don't know that much about crypto. I'm sure energy use is one big clue as to who
51.
by FourHand451 5y ago
It's kind of sad that we went from "there's an app for that" to Apple themselves being a huge obstacle to making useful, feature-rich mobile software. I used to think writing an app would be a fun side project or that a
52.
by FourHand451 5y ago
Not really, unfortunately. Webb will be much further from Earth than Hubble is, so as far as I'm aware a human mission to go repair it isn't really considered an option. https://www.nasa.gov/topics/universe&#x
53.
by FourHand451 5y ago
re: the seal. It looks like it's just a big flat disk with a destructible seal over the exit tube for the projectile. I don't doubt that the bigness is a challenge, but the concept seems pretty simple.
54.
by FourHand451 5y ago
> But the virus is endemic and vaccines will not stop it from being caught by everybody at some point. Plenty of people live their whole lives without catching smallpox or polio. We have/can develop effective vaccines for COVID. Why
55.
by FourHand451 5y ago
In the same vein, the Washington Monument is topped with an aluminum pyramid. This material was selected because at the time of construction aluminum was still considered nifty and new. https://en.wikipedia.org/wiki/Was
56.
by FourHand451 5y ago
Are you implying that yearly launches would reduce cost through economies of scale or something? Or just that JWST costs less than the F-35 program? While having a Starship sized fairing to put JWST in for launch would probably reduce some
57.
by FourHand451 5y ago
It seems that the nozzles feeding onto the aerospike are sufficiently small to operate safely at sea level air pressure. That kind of nozzle can operate safely at lower air pressure as well, but is inefficient. The aerospike gives you back
58.
by FourHand451 5y ago
Scott Manley has a good video on this topic: https://youtu.be/_q2i0eu35aY
59.
by FourHand451 5y ago
I hope you're right, but to me that sounds like the probable outcome in a world that is more just than the one we live in. A big organization leaves a lot of room to deny hands-on involvement with the more unsavory stuff that's go
60.
by FourHand451 5y ago
> It takes someone to come along and knowingly look for "ah ha, gotcha" loopholes in a system to exploit for their own advantage. Obviously it's not a positive thing in this case, but there seems to be a lot in common with

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