14:25 into this video is an *astounding* scratchuilt Saturn V. Cutaways of not just all three stages, but also of the Command and Service Modules. unfortunately the camera moves too fast to make out anything that might say *who* built this masterpiece.
A 1979 promo for TMP. Some interesting stuff here… work on the Enterprise model, Klingon battle cruiser models getting exploded (a scene later re-imagined) and Persis Khambatta losing her hair, and not being entirely thrilled by it.
If LK-99 pans out as a true room temperature superconductor, it really does seem like it’ll be world changing. That’ll be great: no more need to cryo-cool electromagnets, making maglevs practical and making CAT scanners and the like a hell of a lot cheaper. And making the nightmare scenario of running out of helium much less nightmarish. They’ll make electric motors run cooler and more efficiently and, so I’m led to understand, rings of superconductors can be fed vast amounts of electricity which will losslessy just zip around the ring until called upon. More complex than a battery, but with the potential for *vast* energy densities. At last electric cars might be truly practical: an energy storage system allowing for a thousand miles range and the ability to be recharged in minutes rather than hours, using storage systems based on *lead* rather than rare earths. What’s not to like?
Some preliminary studies by independent labs suggest that at least some aspect of LK-99 are panning out, though nobody is ready to declare victory just yet. And even if the stuff works as advertised, to become truly useful it’ll need to be manufactured at high quality on an industrial scale.We don;t know squadoo about doing that just now. It might turn out to be easy enough for laymen to whip up batches of the stuff. it might turn out to be very difficult.
Here is what I think would be the absolutely best scenario: it’s possible to make the stuff to *adequate* quality on industrial scales, but it’s difficult and expensive. Unless… manufacturing takes place in microgravity. Then the stuff comes in with glorious quality and reliability. This would not only make the world better for all the reasons that the superconductor would, it would kick off space industrialization. Woo.
I would, however, be satisfied with the stuff working and being ground-manufacturable. Decades ago the Shuttle was supposed to kick off space industrialization via microgravity manufacturing of crystals and pharmaceuticals, but people figured out how to make that stuff on the ground.
Starships first not-exactly-successful launch was filmed not only from the ground, but from the NASA WB-57 flying at altitude. Apparently at least five cameras were trained on the launcher; video from two have been released, while three remain classified. i would *assume* that the classified three display some combination of:
1) better tracking
2) Better image quality – better sensor and/or telescope
3) Different spectra… IR and the like
Even with the somewhat dodgy tracking and potato-quality images, these are interesting. You really get a sense of how Starship flopped around the sky at the end there. Which was both sad and incredibly impressive… no other rocket would have survived as long flying *sideways.*
The driving motivation behind everything in the movie “Avatar” was humanity’s need of the mineral “Unobtanium.” It was special since it was a room temperature superconductor, allowing for a lot of advanced technologies. In the movie, humanity would travel light years and wipe out primitive alien civilizations to get it. But recent news suggests that we might not need to… but only if the study turns out to be true. And scientists are dubious.
Korean scientists claim to have created a room temperature superconductor (up to 127 decrees C). The video *seems* to back that up, but who knows. This will need to be tested and replicated. And the chunk they’ve displayed seems kinda cruddy… but the history of prior low-temperature superconductors seems to be that the first bits out the gate are cruddy, with quality following along as production techniques are refined.
*IF* this pans out, there are two fantastic takeaways here. The first is “hey, awesome, room temperature superconductor.” Maglev trains and such become a lot easier. CAT scanners won’t need liquid helium supplies to keep their magnetic bearings working.
But the second thing to note should be noted and noted *hard:* the material is primarily lead, doped with copper oxygen and phosphorus. You know what I *don’t* see there? I don’t see “rare-earth elements that we have to go hat in hand to the Chinese to obtain.” We don’t need to throw money into third-world hellholes to have them scrape vast pits into the ground. Domestic mining and production would seem entirely feasible.
That’s all great. I hope it bears out. But history is full of fabulous press releases that turned out to be fraudulent or simply wrong. That’s certainly possible here. We’ll just need to wait and see.
Here’s how Wikipedia describes the material. See how far you get before you go “I dunno what the frak they’re talking about:”
The chemical composition of LK-99 is approximately Pb9Cu(PO4)6O such that—compared to pure lead-apatite (Pb10(PO4)6O)[4]: 5 —approximately one quarter of Pb(II) ions in position 2 of the apatite structure are replaced by Cu(II) ions.[1]: 9 This partial replacement of Pb2+ ions (measuring 133 picometre) with Cu2+ ions (measuring 87 picometre) is said to cause a 0.48% reduction in volume, creating internal stress inside the material.[1]: 8
The internal stress is claimed to cause a heterojunction quantum well between the Pb(1) and oxygen within the phosphate ([PO4]3−) generating a superconducting quantum well (SQW).[1]: 10 Lee et al. claim to show LK-99 exhibits a response to a magnetic field (Meissner effect) when chemical vapor deposition is used to apply LK-99 to a non-magnetic copper sample.[1]: 4 Pure lead-apatite is an insulator, but Lee et al. claim copper-doped lead-apatite forming LK-99 is a superconductor, or at higher temperatures, a metal.[4]: 5
Here’s a video discussing the “discovery” and the causes of skepticism:
“The 13th Warrior” was, shockingly to me, one of history’s great box office bombs… budget was about $100 million in 1999, but it only made about $33 million domestically, less than that foreign. Counting marketing, it lost well over a hundred million dollars. I’ve never understood why this was so; it was a substantially badass movie, based on a Michael Chrichton novel (“Eaters of the Dead”) not long after the success of “Jurassic Park,” starring Antonio Banderas. It had Vikings fighting Neanderthals. What was not to like? Well, apparently the movie going public wasn’t interested. My ass was in the theater on opening weekend.
It had a DVD release, but never a valid Blu Ray. I’d be all over a 4K release.
These two are buds.
The forthcoming “The Creator,” due to hit theaters in September, *looks* awesome. Long have I and many others bitched that Hollywood seems incapable of doing something that’s not a sequel, prequel, reboot, remake or based on an existing IP of some kind. But here’s one that seems to be entirely original, and it *looks* fantastic… on a budget of a relatively paltry $86 million. Now, we’ve been stung before… for example, “Elysium” looked, early on, like it’d be something fantastic but it turned into meh. “Interstellar” similarly had mountains of potential, much of it squandered by being both depressing and gibberishy.
If “The Creator” is actually good, I hope it does really well. Unfortunately, garbage often does fantastic business, and good stuff gets left behind.
Of my four cats, two (Speedbump and Banshee) like catnip. Buttons has never cared for it; Billy shows no interest, though he’s still young (cats apparently don’t become interested in catnip until sexual maturity).
Speedbump’s interest is polite. He will sit silently and watch me carrying leaves and stems and will gently take a leaf and gnaw upon it. Banshee, in contrast, goes bugnuts.
… but just wait until these damned things get a little smarter, wake up and become self aware. Them and those friggen’ Furbies will be the death of us all.