labcomputer

6 ms·

61.
by labcomputer 4mo ago
Fixing them is completely doable, and the solutions are obvious, as you point out. But the political will to accept the obvious consequences just isn't there. Meaning, the demographic distribution of students taking (and re-taking) th
62.
by labcomputer 4mo ago
> Why do EV companies keep making this customer hostile decision? Because it eliminates the headliner and insulation, which allows the roof to be an inch shorter while maintaining the same interior headroom. The has a direct impact on
63.
by labcomputer 4mo ago
Because development and permitting fees aren’t the problem. People already want to build new homes. We just don’t allow them to do so. In fact, those subsidies are often part of the problem. The only way to get new development approved in
64.
by labcomputer 4mo ago
> It's not the same as designing a system based around a single sensor that is known to fail Right, they designed the their system with two sensors, and if they disagree, the system gives misleading indications to the pilots! T
65.
by labcomputer 4mo ago
If you read your own link, they also think it’s the engine manufacturer’s (CFM’s) responsibility to work with Boeing to redesign the cowl, and recommend that the European Aviation Safety Agency require engine manufacturers to work collabo
66.
by labcomputer 4mo ago
The person you’re replying to is trying to play rhetorical word games. The upper stage has six engines. The outer three engines are “vacuum engines” (optimized for operation in space). The inner three engines are “non vacuum engines” (opt
67.
by labcomputer 4mo ago
But by the time retail traders can affect the stock price, SpaceX will have already gotten their money.
68.
by labcomputer 4mo ago
Scaled Composites has had a few deaths, too. Less recent that I thought: https://spacenews.com/explosion-mojave-air-and-space-port-ki...
69.
by labcomputer 4mo ago
That depends on how much a unit of delta-v costs. If you can do the whole mission for $100/kg, quite a few things become economical.
70.
by labcomputer 4mo ago
Because there’s a much, much simpler and easier way: 1. Connect the two ships 2. Connect the liquid valves from both cryo tanks together. 3. Spin the ships about the short axis 4. Open the vent valve for the cryo tank to receive liquid. 5.
71.
by labcomputer 4mo ago
So lightbulbs actually dont have fixed resistance. The tempco is pretty big, and temperature of course depends on power (with an annoyingly large time lag when power is reduced). That being said, the bulb does have a well-defined resista
72.
by labcomputer 4mo ago
Yup. Also, power RF amps are often still today based on (a type of) tubes. Tektronix had some tube-based active probes with up to 850MHz of bandwidth, for use with equivalent-time sampling oscilloscopes in the early 1960's. The first
73.
by labcomputer 4mo ago
Yea, but so what? It's cheaper and easier and you get the same effect, without all the downsides of tubes, like heat, warmup time and wasted energy.
74.
by labcomputer 4mo ago
The thing you posted isn't the same thing as a differential probe. It's a single input low bandwidth scope that floats at the common mode voltage, with an optically-isolated data output. Now, let's say you want to probe tw
75.
by labcomputer 4mo ago
> I don't think most EU politicians are corrupted by these companies. Well, of course not! They're corrupted by the other companies who benefit from the DSA and DMA.
76.
by labcomputer 4mo ago
> Pretend there's no corruption and there won't be any?? If you look at that person's responses to others in this thread, that is exactly what they are doing. I do hope they have proper health and safety training for movi
77.
by labcomputer 4mo ago
> Attestation purports to prove the code is running on an "approved" device. There are multiple reasons that has no real security value. BART (San Francisco Bay Area Rapid Transit), as a real world example, recently installed &
78.
by labcomputer 4mo ago
Because you’re changing something about the environment, and we can’t have that until it’s been studied to death.
79.
by labcomputer 4mo ago
Because of the reciprocity of absorption and emission: the panels which absorb more also proportionately radiate heat back into space at night more effectively than whatever they cover (which presumably has a higher albedo) You might then w
80.
by labcomputer 5mo ago
> Things like NTP and DNS that other good stuff that DHCP can be used to tell hosts about. Look up RFC 6106 (published 15 years ago). Router advertisements have carried DNS resolver info for a long time now. Once again, the old adage “IP
81.
by labcomputer 5mo ago
> Was it essentially doing the high-tech equivalent of dangling a rock on a string with some dampening (in a gyroscopic cage to avoid being affected by the airplane's rotation), or something smarter? Yes, that is essentially how a g
82.
by labcomputer 5mo ago
> anyone who can succeed in academia almost certainly has the brains and credentials to get a decent non-academic job. I suspect the way this usually gets started is similar to embezzlement schemes. “Oh I’ll just borrow a few dollars fro
83.
by labcomputer 5mo ago
Cheap may be the point. The Soviets deployed a missle with an imaging seeker in 1984. But the real question is: does the appearance of good, cheap IR sensors in combat mean that we civilians will finally be allowed to buy thermal IR camer
84.
by labcomputer 5mo ago
Well, imaging IR seekers aren’t new either. The imaging seeker program for the AIM-9X sidewinder started in 1996 and entered service in 2003. An even earlier version, the AIM-9R was tested in 1990 before the budget was cut as part of the Co
85.
by labcomputer 5mo ago
Yes, but they can't do that if every Indian wants one, and they especially can't do that if every Chinese person wants one at the same time. IPv4 is 32 bits. It has a hard cap of ~4 billion addresses. China and India alone hav
86.
by labcomputer 5mo ago
I think that's a bit uncharitable. 32 bits seemed practically infinite at the time IPv4 was created, and the whole thing started as a way for the American military-industrial-research complex to communicate with itself anyway. Why w
87.
by labcomputer 5mo ago
> IPv4 is not variable-length. I get the impression that this fact is fundamentally lost on a lot of the people who want a "compatible" IPv6. Like, their mental model does not distinguish between how we as humans write down an
88.
by labcomputer 5mo ago
IPv6 ND (and SND) serve the same purpose as ARP. It's like saying a fancy French restaurant doesn't have a cook because it has a chef.
89.
by labcomputer 5mo ago
> There is a ton of unused space in IPv4. Err... you do realize that the number of humans currently living on planet earth is twice the number of IPv4 addresses... right? We can't all have an IPv4 address for each of our devices.
90.
by labcomputer 6mo ago
That’s an RCD, not a breaker. Guess the English still insist on using nonstandard terminology, like “lift”, “bonnet”, “torch”, and, apparently, “breaker”. Oh well.

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