Please create an account to participate in the Slashdot moderation system

 



Forgot your password?
typodupeerror

Comment Re:Nuances (Score 1) 44

"I *would* argue that Apollo 8 and 13 did not go to the moon"

Hey, this is your nit. So...

No 'Apollo' went to the Moon. That achievement was credited to Lunar Landers...

You mean the... wait for it... Apollo lunar module?

Apollo 8 was an unqualified success.

Didn't say it was't. I just said it was a lunar mission, but not a mission to the moon.

Apollo 13 was in fact a partly successful mission, and was indeed NASA's finest hour. Everything before that laid the groundwork for recovery from sure disaster, and everything after that was more mindful than ever of the real challenges of space.

No question about that. Any mission where the astronauts return home in one piece is at least partially successful, because that one ultra-critical part still went right.

And forgotten when NASA started believing they were smarter than they were, and the Shuttle program cost astronaut lives, many needlessly.

I have to disagree with that. Yeah, the shuttle design sucked in a lot of critical ways, but we mostly have the military to blame for that, because of their requirement that satellite retrieval be a critical feature in any future NASA craft. Pretty much all of what doomed both of the failed shuttle missions ultimately stems from that design decision and the compromises that came out of that decision (specifically, the need to put the shuttle on the side of the stack stemmed from the need to use the SSMEs to have enough lift capacity to bring large satellite payloads to orbit).

Challenger failed because of that. Columbia failed because of that.

Sure, there were other causes. Challenger also failed because warnings about the o-rings were dismissed by middle management and not brought to the attention of the people who could do something about it. It failed because nobody saw the leaking plume and thought, "The tank could blow. We need to do an early SRB sep and an RTLS abort or an abort once around (depending on alitude).

Columbia also failed because NASA failed to deal with the foam problem that had plagued numerous previous shuttle missions. Columbia also failed because NASA didn't have any plan in place to repair critical leading edge tiles in orbit. Columbia also failed because NASA didn't have a plan for launching a rescue shuttle if something went wrong. Columbia also likely failed in part because NASA didn't replace the oldest bird in the fleet with one of the newer, much lighter versions, which weighed about four tons less (112.4 pounds per square foot of wing area on Columbia versus 107.5 pounds per square foot for Endeavor, for example). Maybe that small difference wouldn't have made it survivable, or maybe it would have.

Columbia also failed because they deliberately didn't look to see the state of things, believing that nothing could be done, and therefore they did not launch a supply rocket to restock them so that they could extend the mission until they could come up with a solution or launch a rescue shuttle. They did not sacrificially open the landing gear early to cool the wing and allow plasma a path out of the damaged wing during reentry (and increase drag). They did not deploy the drag chute early sacrificially to increase drag. They did not perform all of their turns in a way that would minimize heating on the bad wing or bring the thing down in a continuous curve to increase heat on one side and decrease the heat on the other side. And so on. None of those things were even discussed, because they took it as a foregone conclusion that there was nothing they could do, so they didn't even try.

But at the same time, the number of things they *did* think of, at least during the design stages, is incredible. For example, if they *had* caught the Challenger problem in time to do an early ET and SRB separation, they trained for aborting back to KSC, and the crew could have been saved. Columbia was pretty much screwed without a rescue mission, of course, but the fact that the computer could basically autoland the shuttle (except for the landing gear, which required an umbilical and some new software) meant that *if* they had caught that in time and sent a supply mission and a later rescue mission to bring the crew home, they could have attempted a landing of the shuttle without sacrificing anyone. It meant that if the crew became incapacitated, it could probably mostly bring itself to a landing, albeit a very tile-destroying landing. And so on.

So at least for Columbia, it isn't so much that they believed that they were smarter than they were so much as that they gave up. I don't know which is worse.

I'm not very hopeful that Artemis will be worth the expense, but if ii succeeds, I am back in love with space exploration.

I definitely don't think it's worth the expense. They're doing three flights with the design and then throwing it away for a different version in the fourth flight, then throwing it away again in the ninth flight, meanwhile, assuming SpaceX continues on its current trajectory (with Starship block 3 launching in 2026), the Artemis block 2 lift vehicle will be hopelessly out of date years before its first launch (post-2030, with a quarter the payload capacity, and at orders of magnitude higher cost).

It's the best rocket Congress and defense contractor lobbyists could design.

Comment Re:Nuances (Score 1) 44

You're creating a distinction without a large difference.

You are splitting hairs over the definition of what "going to the moon" means - does it include going anywhere within the moon's gravitational sphere of influence, or do you have to actually touch regolith for it to count?

hint: if you have to touch regolith, then you are claiming that Apollo 8 and Apollo 13 did not go to the moon, which is going to cause far more confusion and argument.

*shrugs*

I *would* argue that Apollo 8 and 13 did not go to the moon, though Apollo 8 is notable for being the first human spacecraft to enter lunar orbit, which means it still a huge milestone. Apollo 13, of course, failed spectacularly in its attempt to reach the moon, and is notable for being one of the most amazing saves in the history of the space program. And clearly they are both lunar missions, in that they are moon-related, whereas when I think of a moon mission, I think of a mission specifically to the moon's surface. Very esoteric linguistic distinction, and I may just be splitting hairs.

Comment Re:Spreading misinformation (Score 2) 206

Well, since "the LGBTQ stuff" is political

Is it really? I think it's more personal than political, though in general it gets really fuzzy when political views take aim at individual identity.

and his weapon, ammunition, and recorded communications are covered in far-left political messaging,

His ammunition had obscure internet meme references that are used more by the alt-right than the left, though it's really hard to tell because Internet extremists apply many layers of irony, making it really hard to tell.

No, his political motivations are not very clear.

Oh, and the kid who shot Trump did have political motivations. He shot a presidential candidate!!

Except that Crooks was also tracking events of the Democratic candidates. He wanted to shoot a prominent figure, it didn't matter which side. Ryan Routh was definitely political, but he wasn't any sort of left-winger. He voted for Trump, then supported Bernie, then Tulsi Gabbard, then Nikki Haley and Vivek Ramaswamy.

I think it's highly likely that Robinson was similarly all over the place, but likely less clear since he was young probably didn't think much about politics.

Also, if Kirk's shooter's parents were Republicans, and their son now disagrees with them, do you honestly think it is because he went further to the Right?

No, I think he was probably already further to the right, but moved at least some of his views to the left. You do know who Nick Fuentes and the groypers are, right?

You must be smarter than that.

This almost earned you a "Foe" tag. I haven't impugned your intelligence or other personal characteristics. Keep it civil, please.

Indeed, left-wing violence is on the rise, but that's coming from a point where right-wing violence utterly dominated the space for decades. Don't go assuming that your side is somehow less violent just because they've been relatively quiet this year. And although I'm actually not on the left, if I were I wouldn't assume that my side is inherently less violent, either, because the opposite was true in the 60s.

The only correct reaction here is to condemn political violence, full stop, and not to care what the motivations of the individuals were (though, obviously, I have a sick fascination with understanding their motivations and spend way too much time digging into whatever we have).

Note that condemning political violence, full stop, is not what Trump and the GOP leadership are doing. They're condemning only violence from the left and ignoring violence from the right. This is very bad for all of us left, right and center.

Comment Re:Spreading misinformation (Score 1) 206

Was the evidence indicating X trustworthy in the first place?

What makes you think it wasn't?

Like the flat Earth conspiracy theories, the COVID conspiracy theories are really amusing, and for the same reason: The theorists can offer no plausible explanation as to why the alleged conspirators are doing the dastardly thing. During COVID, the best rationale on offer was "To control us!". Okay, but if someone wants to control you, don't they generally use that control to make you do something that benefits them? If I built a mind control machine, would I use it to make people give me money and sex, or would I use it to get them to turn in a circle three times before going to bed?

The best the flat Earthers can come up with is "It's a plot by NASA to get money from the government", which they then "prove" by ginning up some math that shows that the cost of deceiving the world just happens to be about the same amount as NASA's budget. Except that actually disproves their point. If I'm going to create a hoax to extract government funding, I definitely don't want to spend every penny of the funding on running the hoax. That's just working for a living, and if I'm a scammer it's exactly what I don't want to do.

Comment Re:So what? (Score 1) 197

How many Europeans still kiss acquaintances on the cheeks anymore? Hasn't that gone out of fashion yet?

It has not, though keep in mind that you don't actually kiss their cheeks, you kiss the air next to their cheeks. What touches their cheek is your cheek, if anything (often there is no actual contact).

Comment Re:Sometimes, technology also changes the culture (Score 3, Informative) 197

It's a myth, easily debunked by trying it out: Write left to right. When you reach the end of the line, start writing the next line. In doing so you will smudge the line above, and get ink on your fingers when you hold your pen low. Mutatis mutandis with pencil.

Huh? Right-handers writing left to right and top to bottom have no problem with this. When you go to the next line, you don't touch the line above. It's above, and the pen extends beyond your fingers, so your fingers stay well away from the just-written line. If you're a left-hander, going to the next line isn't the issue, the problem is smudging the just-written characters on the same line... except that left-handers often avoid that problem by cocking their wrist sharply to move the edge of their palm up out of the way so it doesn't touch the just-written letters. That then means they might smudge lines above. They make it work, mostly, but it's tricky.

Comment Re: Half of the entire world uses it? (Score 2) 30

About 5.56 billion people have Internet access, but subtract 1.12 billion for China and 130.4 million for Russia, because I'm pretty sure neither has access to U.S. social media, an that leaves 4.3 billion. So it's *maybe* possible that 69.8% of the Internet-using world uses Instagram...

But yeah, a lot of them almost certainly are bots.

Comment Re:Nuances (Score 1) 44

Your semantic change makes no difference and isn't even 'proper' headline grammar... It *is* a moon mission, not a space station or earth orbital mission. Its just not a crewed moon *landing* mission. Its been well known for a *long* time the first SLS/Artemis launch to the moon is a round-trip-no-landing, just like with Apollo 8, to check out the systems. The synopsis even states "will not land on the Moon" so I'm not sure why you think a different subject is needed.

Because an average person reading the headline would think that they are going to the moon, not that they are going around the moon. "NASA plans moon-orbit mission for february" would be clearer and not that much longer.

Comment Re:Spreading misinformation (Score 4, Insightful) 206

Well, "MAGA people" were not doing any such thing.

MAGA assumed from the outset that he must be far-left, both because it confirmed their own biases and because they didn't want to believe otherwise. They did the same thing with the kid who shot Trump, though he turned out not to really have any political intentions.

What they were doing was mocking the occasional far-left dolt who tried to make the claim that the shooter was from the Right.

It's actually pretty plausible. The alt-right has been pissed at Charlie Kirk for years, especially Nick Fuentes' groypers, who have considered Kirk a race traitor. And there is some evidence that Robinson had sympathy for groypers, though at some point he decided he was gay and probably started to get pissed about Kirk's anti-LGBTQ screeds. Perhaps he shifted left generally, perhaps he remained generally right-leaning except on those issues, we don't know. The only information we have is a vague claim by his family that he had become more political and that he disagreed with them.

And yeah, we do know for sure that the shooter was a far-left nutjob.

We really don't know that for sure. On balance I think he probably had shifted pretty left, but the evidence is ambiguous at best. Maybe we'll learn more, but it's possible we'll never know unless Robinson decides to tell us.

If I had to put money on it, I'd bet that Robinson's politics were pretty muddled and his main reason for hating Kirk was the LGBTQ stuff.

Comment Re:I know a persian (Score 2) 197

Iranians refer to themselves as Persians, and prefer to be called that. They are rightfully proud of their heritage, the great Persian empire.

The only Iranian I've ever met (that I'm aware of) said that when he met people, he usually called himself Persian to avoid the stigma that comes from saying you're from Iran, presumably out of fear that Americans would assume that he was a fundamentalist just waiting for a chance to shout "Death to America" and blow himself up or whatever. He didn't put it exactly that way, but that was the gist.

Comment Re:Spreading misinformation (Score 3, Insightful) 206

The former seems way more acceptable to me

This is only because you haven't through this through. "detrimental to public health" is not nearly as objective as we need it to be. Instead, it is often a substitute to "advantageous to financial interests of a pharmaceutical company". For example, opioid epidemic and false claims that oxy is not addictive.

Who made claims that oxycontin isn't addictive? The government? No. The manufacturer. The government merely allowed them to do it until their claims were shown to be false.

Spreading claims that would encourage a pandemic to get massively worse by discouraging vaccination falls squarely under "detrimental to public health". At no point were *legitimate* studies that showed safety concerns in any way squashed to favor any company's interest. That's why we know that vector-based vaccines were responsible for a statistically significant number of strokes and heart attacks in otherwise healthy people.

The studies that were squashed were a bunch of very weak, mathematically garbage studies that contained errors so obvious that even I, a non-medical person, could shoot dozens of holes in their methodology. A small number of individuals were behind publishing fraudulent study after fraudulent study, and they kept doing this despite broad consensus that their methodology and their conclusions were pure, unadulterated bulls**t. They did this by publishing in journals significantly outside the areas that were appropriate for the papers, relying on the journals' lack of people with adequate understanding of the subject to shoot it full of holes and recommend not publishing it.

And these folks had a tendency to go on YouTube and spread their bulls**t, using their publication in a "journal" (of physics, social sciences, psychiatry, chiropractic medicine, etc.) to support their absolutely fraudulent claims. YouTube quite literally became a dumping ground for trash science that made the National Enquirer look like respectable journalism by comparison.

It got to the point where my canned response was, "If you are showing me something in a YouTube video instead of a peer-reviewed journal, I automatically assume that what you are saying is pure, unadulterated bulls**t, because out of the roughly one hundred times I have not made that assumption, I have found it to be true every single time. If you want me to read it, write it down, so that at least I can skim it in three minutes and point out why you are wrong without wasting an hour of my time watching your stupid video."

IMO, YouTube was right to crack down on that. When people without medical degrees are basically giving medical advice that contradicts broad medical consensus, this is almost guaranteed to be harming society. And nothing good can come of that. Children dying of measles, smallpox, polio, and other vaccine-preventable conditions is not something we should aspire to. Regardless of whether they have freedom of speech, that doesn't mean companies should be required to be their megaphone. And regardless of whether the government was the group who pointed out how potentially harmful the things they were saying are, the stuff they were saying was still harmful.

Comment Re:Spreading misinformation (Score 3, Interesting) 206

Quite a few times things which were deemed misinformation back during the COVID times turned out to be different than official sources said (at first or later).

If the best available evidence indicates X, but you believe Y based on gut feel, then later solid evidence of Y is developed, were you right? Further, should this experience convince you to trust your gut over the best available evidence in the future?

Slashdot Top Deals

"The following is not for the weak of heart or Fundamentalists." -- Dave Barry

Working...