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DDE
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Posts posted by DDE
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After a very brief Googling, I think Roscosmos ran into the problem of not having a Russian burecratese for "defect" - the defect is 12 mm in diameter and consists mainly of silvery molten ejecta.
Slide 16 here looks particularly interesting: https://www.nasa.gov/sites/default/files/files/E_Christiansen-MMODriskOverview.pdf ... although I also susoect is might be torn-off Kapton.
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Image of Progress MS-21 hole.
https://t.me/roscosmos_gk/8532
No stain and doesn't seem to be any ejecta. Almost the exact same location. And they've assessed the hole to be a whopping 12 mm in diameter.
At any rate, preliminary conclusion is damage from outside factors.
Official information ends here
A simple hole half and inch wide wouldn't wait for a week to vent coolant, and the coolant would probably vent quiet a bit more enthusiastically. Besides, does Energia even have drill bits this fat?
I'd love to see a cross-section of the radiator, but this sounds like it was either a crater that only made it partway through the panel, and its bottom gave way later (and the shiny metal would be plainly visible to ground personnel before solar array folding), or it was micrometeoroid damage in situ. But it is a rather weird-looking crater... the overall 12 mm structure looks raised and the hole in the center is tiny...
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4 hours ago, AlamoVampire said:
suddenly I smell this (still do off and on as i wait to pay) freakishly sweet scent
...Just make sure your car isn't leaking coolant.
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After a few false starts, I've fallen into my usual trap with Rimworld: Ideologies.
You see, the game randomly generates ideologies for factions that may or may not make much sense (see that peaceful tribe over there? They're cannibals). However, it also allows you to replace those ideologies with your own at game start. Worldbuilding!
And then what's worse, I've realized that each ideology has a hidden parameter for planet of origin. Normally that just affects flavor text, but now it provides heaps of context for worldbuilding.
So I'm stuck for the better part of the last month coming up with a nice, coherent and varied line-up. At this point, I'm enticed to post it in the Workshop somehow...
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Soyuz MS-23 launch scheduled Feb 24 03:34 MSK
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13 hours ago, Superfluous J said:
To this, the little old lady crowed triumphantly...
I believe this was what we today would call "friendly trolling".
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11 hours ago, steve9728 said:
“I think we can all agree that physics gets the credit here, not magic. And so does training and skill: Bruce Lee could deliver a punch with quite a significant wallop. In the end, it doesn't matter if this punch is superhuman or not—I don't want to be on the receiving end of it.”
Emmmmmmm… yep
However, I have always had the idea that the traditional Chinese martial arts we see today - the unarmed part - is similar to the gymnastics part of the daily training of armies around the world today. It certainly has some combat ability, but I think it is mainly a preparation for armed men before formal training. In turn, these empty-hand fighting techniques were modified in different ways for different needs as they spread from the military to the civilian population. The end result is what we see today as traditional Chinese martial arts: frankly it has become a sort of art performance ......
I think the problem is that "Oriental" martial arts have suffered from mission creep and began to incorporate not just general fitness training, but a religious/spiritual aspect that began to come at the expense of actual hitting power. "Occidental" martial arts never tried to rise above their station, but the lack of flashiness and exoticisim made all the various types of wrestling and boxing lose the public attention.
Spoiler...Now the rivals two, silent, moved apart,
Thout another sound did the fight commence.Kiribeyevich was the first to strike;
His gloved hand he waved and a crushing blow
Struck the merchant brave on his mighty chest.
And Stepan Paramonovich staggered and reeled;
On his breast there dangled a copper cross
With a relic from holy Kiev-town,
And this cross bit deep into his firm flesh,
And like dew the blood from beneath it dripped.
And he said to himself, said the merchant brave:
"What is fated to be is bound to be;
For the truth will I stand to the very end!"
And he steadied himself as he made to strike,
And he gathered his strength and with all his force
Fetched his hated rival a round-arm blow,
Hit him full he did on the side of the head.And the young oprichnik he softly moaned,
And he swayed and dropped to the icy ground,
To the icy ground like a pine he fell,
Like a slender pine in a wintry grove
By an axe cut down at the very roots....
To the ground he fell, and he lay there, dead.
At this fearful sight was the Christian Tsar
Overcome by a blinding rage and fierce,
And he knit his brows, and he stamped his foot,
And he bade his men seize the merchant bold,
And to bring the knave 'fore his face at once... -
2 hours ago, kerbiloid said:
https://www.rbc.ru/rbcfreenews/63f069999a794731094e5193
The Progress MS-21 undocking is delayed.
They will decide if to deorbit it or redock it to the Prichal module for further investigation.
Correction: MS-21 is undocked, but the deorbit burn has been aborted.
Mainly because they haven't been able to find any visual evidence of damage.
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Progress M21 to undock tomorrow 05:26 MSK.
Instead of trying to bend the Canadarm to photo it, they're going to photo it once undocked.
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US and China: "Is it aliens?" "We can neither confirm nor deny"
Russia and Ukraine: "So this UFO in my backyard has a Romanian cola bottle as ballast, go figure"
Spoiler
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Phosgene over Ohio. Who woulda thunk...
Damn, this is shaping out to be a nasty week for the US, isn't it?
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Intergenerational inheritance of DNA methylation, which is a vehicle for epigenetic mutation, in mice; includes at least one case of the artificially induced methylation resurfacing in grand-children
Mechanism and implications uncertain, given how the methylation was induced by gene-solicing and unsplicing, but they've been able to make all offspring overweight without a detectable permanent alterations to the genes themselves.
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California, school busses. The remarks of a certain American politician have reached the Russian segment of the net, and they're causing guffaws, albeit not for the reason they were originally spread far and wide.
Given that Wi-fi and USB charge ports have been the norm for Moscow's busses since the late 2010s, including both apparent upgrade kits for regular diesels, and a growing fleet of EVs, trying to use these as a selling point invites scorn towards California's school bus system.
I decided to see if there's anything more to this story, and took a glance at the US EVs that get lambasted in related coverage for low reliability in scorching heat. And their specs invite the actual questions. Moscow's electrobus fleet are KamAZ-6282 (range: 70 km) and LiAZ-6274 (range: 80 km). The latter at some point in development had to trade a 200 km-capable Li-ion battery pack for a Li-titanite pack similar to the former. And galcing over the driver's shoulder, you really can see the charge bar drop in real time. Meanwhile, ProTerra aim for a whopping 250-300+ miles.
The questions boil down to necessity - are US school district and public transport routes really this long? I'm also wondering if, for some reason, charging between every circuit/two circuits was for some reason considered unacceptable. At this point, it feels like the endurance of the driver and oassengers would be the limiting factor in operation. Curious to hear any comments and opinions.
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2 hours ago, sevenperforce said:
News now coming out that the last UFO to be destroyed, the one over Lake Huron, survived the first missile shot at it because the pilot of the F-16 selected a heat-seeking missile....
https://www.foxnews.com/us/us-military-first-shot-unknown-octagonal-object-lake-huron-missed
The first balloon was shot down by an AIM-9X. Missile selection clearly wasn't the problem.
Also, if we're back to balloons, guess who else joins the contest!
https://www.pravda.com.ua/eng/news/2023/02/14/7389304/index.amp
The launch appears to have successfully simulated a Shahed/Geranium raid, jusdging by the alert that went out that night.
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1 hour ago, CatastrophicFailure said:
ULA hired themselves a new sniper…
I think https://www.whatsthatbug.com/ charged extra for hazard pay in identifying that one...
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Rogozin's №1 fan chips in
Mikhail Kotov has succinctly summarized that, whatever has actually hapenned, any version involves Dyatlov Pass levels of mystery. Even if both cases are an endogenic technical issue, it has replicated itself with absolutely astonishing reliability.
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The nuclear-powered submarine tanker from Malakhit strikes again (this time not as a Typhoon derivative)
Recently getting rehyped again as a blockade runner, but the project is back from 2019.
https://sudostroenie.info/novosti/28091.html
As pointed out in rather unprintable language by Dmitry Kononykhin, who claims to have participated in the original 1994-'95 studies, underwater transportation of a bulk cargo that is 2.5 times less dense than water is a remarkably impractical idea in principle.
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6 hours ago, Codraroll said:
Then the question is, how different does it look from a hole drilled in error at the manufacturing plant, covered with resin putty, and painted nicely over?
You'd have to somehow explain a ring of dark ejecta or pyrobolt explosive residue. Doesn't look like mechanical markings.
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Quote
It was enough to somehow type out a muddy verbal embryo with two fingers, even just to start doing it, and the application immediately responded with several options for a newborn thought, already formulated and ruddy, wrapped in diapers of smart words, which every now and then made Grym to refer to thesauri.T
he growing embryo looked like a spinning cube - different versions of the text appeared on the faces approaching the screen. Each time it was a well-formulated finished maxim - it did not require further processing. But it was possible to change the nuances contained in it endlessly, and here the main thing was to stop in time.
…
It was like a game - as if he was throwing instantly germinating seeds into an invisible furrow. Their growth could be controlled in the most bizarre ways. A newborn paragraph-cube could be moved along many axes with inscriptions like “more complex”, “simpler”, “angrier”, “kinder”, “smarter”, “more naive”, “more soulful”, “wittier”, “more ruthless” - and the text this instantly changed in accordance with the chosen route, and at the new points of the endless trajectory, new semantic axes arose along which thought could be moved further.
- Victor Pelevin, S.N.U.F.F., 2011
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3 hours ago, darthgently said:
But other than that I'd think a micrometeorite would have the edges angled inward.
No, it wouldn't. For what it's worth, this does look a fair bit like a hypervelocity impact.
Anyway, Ilya Ovchinnikov posits that this is quite close to where the solar panel hold-down bolts are.
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7 hours ago, mikegarrison said:
I have seen numerous reports that MS-21 lost "cabin pressure" and also numerous reports that it lost "coolant pressure".
The problem is that the original statement was "a depressurization has occurred", full stop. That would cover either scenario. As you can see a page back, I too hadn't immediately jumped to blame the cooling loop.
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1 minute ago, Beccab said:
To add to that:
Hey, if they did, at least everyone was in the same boat.
NASA had officially dismissed the Geminids as the culprits. That's about it.
12 minutes ago, darthgently said:Occam's razor. I'd look for why the cooling system might be more exposed or more vulnerable to micrometeorite damage or perhaps a manufacturing weakness that looks like micrometeorite damage after failure maybe.
Another option someone bounced around on NASASpaceflight is damage from fairing separation. This too would be fairly replicable, although doesn't quite match the visual description provided by NASA.
Russian Launch and Mission Thread
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