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Everything posted by DDE
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For Questions That Don't Merit Their Own Thread
DDE replied to Skyler4856's topic in Science & Spaceflight
https://thespacereview.com/article/3586/1 -
Chinese Space Program (CNSA) & Ch. commercial launch and discussion
DDE replied to tater's topic in Science & Spaceflight
*grumpy Kerbal sounds* -
For Questions That Don't Merit Their Own Thread
DDE replied to Skyler4856's topic in Science & Spaceflight
https://www.cdc.gov/mmwr/volumes/70/wr/mm7043e2.htm Even with their claimed adjustments for demographic factors, this stinks to high heaven in hiw it implies causation. -
Chinese Space Program (CNSA) & Ch. commercial launch and discussion
DDE replied to tater's topic in Science & Spaceflight
"The less you know, the easier you sleep" -
What were the Germans supposed to do? Was the poster endorsing a German nuclear weapons program?
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totm dec 2019 Russian Launch and Mission Thread
DDE replied to tater's topic in Science & Spaceflight
Erratum: "show a mock-up of" Also, in news that surprise no-one: HOW DID WE MISS THIS!? -
Spectr-RG lives https://tass.ru/kosmos/11692015
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If we abandoned it, than what's UR-500 Proton.
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SW ends up going both extremes. Single-seat ships are the size of modern single-seat aircraft or smaller; they don't require much maintenance, but modern fiction understates this for IRL aircraft as well. The big ships, on the other hand, seem to have WWII levels of crew per tonnage.
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Most of the increase in yield is achieved through better implosion, not more fissile material.
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The greates complication is that most of a warship's crew is there for maintenance, and on a spacecraft maintenance access is greatly impeded even compared with a submarine. This may slash the crew requirement as a result.
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How deliciously anachronistic
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Chinese Space Program (CNSA) & Ch. commercial launch and discussion
DDE replied to tater's topic in Science & Spaceflight
@SunlitZelkova, interesting thread I stumbled across regarding a rumored education reform -
R-Tea-G
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...looks like the notion traces back to BMPD, a noted Russian defense RUMINT blog. It infers KPT-7I Phoenix was tested on the Sarov and will be fielded onboard the Khabarovsk. https://bmpd.livejournal.com/4395693.html Could be they're misinterpreting the integration of the heat exchnager into the hull. Or the BWR is for the Poseidon torpedo, since it's what the Sarov has been testing.
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totm dec 2019 Russian Launch and Mission Thread
DDE replied to tater's topic in Science & Spaceflight
Given that it's EMKA 2, it's not a great loss, so expending it as a PhOTAB isn't as silly as it sounds. -
The fact that boiling water reactors are even considered for submarines makes me very suspicious of common sense assumptions.
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A question out of the left field: are gas-cooled reactors quiet or loud? Asking for a friend who's into wearing the dolphins /s
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For Questions That Don't Merit Their Own Thread
DDE replied to Skyler4856's topic in Science & Spaceflight
I don't think it's the limiting factor. Pork-spreading in megaprojects is a separate, and very real trend that dates back to at least dreadnought construction in Austria-Hungary. Well, I guess we're still not up to a point where the US starts playing sour grapes with enemy military tech. I've thought better than to post my filibuster on how the US public (and inevitably the military) has had a warped perception of its place in the world for at least three generations, as based on the media they oroduce and consume. But one element that varies from case to case is the relationship to tech: either US №1 (or insert any other faction the American author identifies with) because of advanced technology, or the enemy faction is furnished with mad scinetists and US №1 specifically because advanced technology is somehow evil. -
For Questions That Don't Merit Their Own Thread
DDE replied to Skyler4856's topic in Science & Spaceflight
Wunderwaffe had several contributing factors, one of which was the inherent anti-rationalism of the ruling ideology, sure. But there was also a lot of "industry-led procurement": it's when the engineers (or rather, their bosses) force an ill-advised project upon the military, such as by cutting past the military and appealing to the political leadership, or by hype and bamboozling. Your engineers were so preoccupied with whether or not they could, they didn’t stop to think if they should, et cetera et cetera. The Soviet Union was equally afflicted by this, and it led to many triumphs of novel engineering over common sense and mission requirements. The US for a while seemed relatively immune. I think it was Niven who wrote that anything like the V-2 would have been laughed out of the room by the US military at the time, and the space age would look very different as a result. The idea is to have something like 30% new tech, 70% old tech in each platform, and just gradually iterate to avoid development quagmires. It seems that the last wave of Cold War projects (e.g. F-22, Seawolf-class) did become afflicted by technofetishism. It's probably thanks to Ustinov-era Soviet achievements in categories where the US had traditionally maintained a strong enough edge to haughtily look down on Soviet kit. The post-Soviet era set an even higher bar of technological edge and turkey shoots, so now that superior position is once again challenged, we're likely to be seeing a rush of ill-advised projects. After all, it seems the Pentagon were largely twiddling their thumbs on hypersonics until a balding guy with some 3D graphics and a defense budget the size of Britain's said "Listen to us now!" -
For Questions That Don't Merit Their Own Thread
DDE replied to Skyler4856's topic in Science & Spaceflight
https://thespacereview.com/article/4265/1 A very interesting version of the fabled Overview Effect. -
Gazprom gets fined at slightly less than $2/ton of methane leaked. Theoretically. https://versia.ru/rosprirodnadzor-usilivaet-gromkoe-molchanie-gazproma-po-povodu-utechki-metana-v-tatarstane
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For Questions That Don't Merit Their Own Thread
DDE replied to Skyler4856's topic in Science & Spaceflight
Welp, that's an ICBM. -
totm dec 2019 Russian Launch and Mission Thread
DDE replied to tater's topic in Science & Spaceflight
a ghost