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A room-temperature superconductor? New developments

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Re: A room-temperature superconductor? New developments

#601

Post by Exuma »

russellbeattie wrote: post #60

I wonder if this is just summertime boredom combined with social media blowing an interesting development out of proportion, or if we're actually witnessing history in real time? Also, what are the chances this is like another graphene, where it can do everything except get out of the lab?

I’m also wondering this. People keep saying this is as big as transistors and the Iron Age and so far the only examples I see are slightly more efficient power. The quantum computing one seemed like the only potentially huge benefit. But what do I know

Re: A room-temperature superconductor? New developments

#602

Post by andrepd »

Teever wrote: post #563
andrepd wrote: post #391

Earlier quoted context omitted.

How does room temperature superconductivity lead to the feasibility of asteroid mining? Could you please explain?

You could also ask "How does room temperature semiconductivity lead to the feasibility of asteroid mining?" the answer to that question is the answer to your question.

What?

Re: A room-temperature superconductor? New developments

#604

Post by Dalewyn »

whimsicalism wrote: post #531
ajuc wrote: post #375

Earlier quoted context omitted.

That just means China has it harder and is more likely to fail. Access to global markets is a critical factor in growth of Japan, South Korea and China. USA controls that.

Internal markets in China are becoming increasingly robust and the US does not have control over global markets, that is nonsense.

>Internal markets in China are becoming increasingly robust

I think this fact is being severely understated, perhaps even denied by almost everyone in the west.

The way the US-China cold war has been playing out, the US and friends keeps closing doors only for China to go "Go right ahead, I don't have to play ball." and just succeed even harder on their own. Adding insult to injury is they then take that success and just wholesale buy the doors the US keeps closing.

A surefire way to lose Pax Americana is to become delusional that Pax Americana is winning when by all accounts it's losing and losing hard. I think this ship can still have its course corrected, because Pax Americana is better for us than Pax China, but not if we just keep up this kabuki theatre.

Re: A room-temperature superconductor? New developments

#605

Post by qsdf38100 »

tmpX7dMeXU wrote: post #596
mytailorisrich wrote: post #588

Earlier quoted context omitted.

And in any case whatever power source you're using cannot deliver infinite power.

Who said infinite power?

It's implied by instant charging. The power would be the battery capacity divided by 0.

Re: A room-temperature superconductor? New developments

#606

Post by fragmede »

dang wrote: post #309

The major threads so far, in reverse order—have I missed any? Huazhong University demonstrates LK-99 diamagnetism - https://news.ycombinator.com/item?id=36953819 - Aug 1, 2023 (265 comments) LK-99 crystal verified to be magnetically levitated (with video) - https://news.ycombinator.com/item?id=36953396 - Aug 1, 2023 (10 comments) Room-Temperature Ambient-Pressure Superconductor LK-99 preprint revision 2 - https://new…

Why not put them into a single megathread with the links linked in text? Each new post still has repetitive comments ("What if it's a hoax?" "What does this enable" "Reminds me of the EmDrive"...)

Re: A room-temperature superconductor? New developments

#608

Post by mandmandam »

bananapub wrote: post #598
taberiand wrote: post #475

Earlier quoted context omitted.

It might even all come fast enough to save us from climate change (But I'm not getting my hopes up)

we already know how to stop climate change: actually stop burning shit and deploy existing technologies quickly. the problem is lack of will, not lack of technology. corollary: anyone trying to say we need fancy new technologies like fusion/superconductores/supercapacitors isn't actually very interested in stopping climate change.

> the problem is lack of will

Lack of will which fossil fuel shitbirds spend billions enfestering, with tobacco company style tactics. They knew exactly what the fuck they were doing for the last fifty+ years.

We probably agree on that, I'd just like to focus the blame where it properly belongs. Plenty of people care a lot about climate change, just as we care about plastic pollution and inequality, and I'm pretty fucking tired of being gaslit about it all.

Re: A room-temperature superconductor? New developments

#609

Post by [deleted] »

AlexandrB wrote: post #273
roywiggins wrote: post #72

Earlier quoted context omitted.

Superconductors have a critical field, you can't pump unlimited amounts of current through a superconductor. (I think there were some comments going around that this material has quite a low critical field, so there would have to be some substantial improvements on this even if it is superconducting) https://en.wikipedia.org/wiki/Critical_field

I remember going down the rabbit hole on superconductors a few years ago and finding out that they were limited by a critical field. It was both reassuring and disappointing and largely for the same reason - there's no truly "free lunch" in nature.

[deleted]

Re: A room-temperature superconductor? New developments

#610

Post by bardak »

jtchang wrote: post #418

The ramifications of the inflection point we are currently at is mind boggling. I had a hard time explaining this last night but we may very well be witnessing the beginnings of a technological transformation era much like when the p-n junction was invented. From the 1940s standpoint it would be hard to envision all we had today. - Lossless transport of energy - Batteries that don't take any time to recharge - Faster…

Just to be a bit of a realist do we know if this material is malleable or practical to make intifrates circuits? Is it possible to make large single pieces of it? Don't get me wrong even if the awnser to all of these is no it's still probably the biggest single material science breakthrough since the transistors but we aren't necessarily going to be applicable to all the theoretical applications of semiconductors
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