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A room-temperature superconductor? New developments

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Re: A room-temperature superconductor? New developments

#111

Post by fttx_ »

zulban wrote: post #59
jurimasa wrote: post #48

Earlier quoted context omitted.

[flagged]

Even the Chinese academy of science admits it has a massive fraud and plagiarism problem.

Sure, but does that mean if a reputable researcher at a reputable university (which do exist outside the US and Western Europe) provides strong evidence, should we discount all that simply because Chinese academia has a fraud and plagiarism problem?

Speaking of, I'd guess that the likes of Australian National University, Victoria University of Wellington, University of Tokyo and National University of Singapore (amongst others) would magically count as "American or Western European" for this test.

Re: A room-temperature superconductor? New developments

#112

Post by baja_blast »

bugglebeetle wrote: post #45

With all the recent “the government has alien spacecraft news” and the bizarre circumstances of this material’s creation, the (I know to be ridiculous) conspiratorial part of my mind is going “I guess climate change is finally forcing them to take stuff out of the extraterrestrial vaults.”

I don't know, the material is a ceramic made of a powdered lead, copper, sulphur, phosphorus and oxygen heated up together. It's not some advanced meta material which if true it's amazing this was not discovered earlier but let's just hope it is.

Re: A room-temperature superconductor? New developments

#114

Post by micromacrofoot »

bugglebeetle wrote: post #45

With all the recent “the government has alien spacecraft news” and the bizarre circumstances of this material’s creation, the (I know to be ridiculous) conspiratorial part of my mind is going “I guess climate change is finally forcing them to take stuff out of the extraterrestrial vaults.”

the government didn't have news, someone that worked for it said they heard someone else say something

Re: A room-temperature superconductor? New developments

#115

Post by Zigurd »

bugglebeetle wrote: post #45

With all the recent “the government has alien spacecraft news” and the bizarre circumstances of this material’s creation, the (I know to be ridiculous) conspiratorial part of my mind is going “I guess climate change is finally forcing them to take stuff out of the extraterrestrial vaults.”

One interesting aspect here is that the materials processing is comparatively simple. A real industrial process might require much higher precision. But none of this needs aliens. Based on descriptions of the process, it looks like anyone could try to replicate.

Re: A room-temperature superconductor? New developments

#116

Post by [deleted] »

Salgat wrote: post #98
esalman wrote: post #78

Earlier quoted context omitted.

Think your EV is so efficient that you only need to charge it once every 5000 miles.

How does a superconductor help with that? Lithium ion is already 95-99% efficient, same with motors. It would help with the charging cable, but that's not increasing the battery capacity. Off the top of my head the main advantage here seems to be MRIs, maybe also maglev trains, maybe generators? It really depends on the form factor of this superconductor compared to copper wire.

[deleted]

Re: A room-temperature superconductor? New developments

#117

Post by Agingcoder »

SanderNL wrote: post #21

This is exciting, but I try to maintain my composure. Good luck to all involved. I didn’t know science could be such a thrilling spectator sport.

Yes, this is absolutely thrilling. I can’t help looking for the latest development everyday.

Re: A room-temperature superconductor? New developments

#118

Post by ThisIsMyAltFace »

fallingknife wrote: post #49
7moritz7 wrote: post #17

Earlier quoted context omitted.

I have seen three now from China alone. Plus a calculation from some respected institute from today that confirms the theory

Why are they all from China? Why are they able to replicate so much faster than US labs?

It turns out outsourcing all of your manufacturing capability to another country has higher order consequences.

Re: A room-temperature superconductor? New developments

#119

Post by agnokapathetic »

Geee wrote: post #89
makeworld wrote: post #71

Earlier quoted context omitted.

https://en.wikipedia.org/wiki/Superconducting_magnetic_energ...

That's what I meant. It states energy density as 40 kJ/L. Lithium batteries have energy density up to 2.5 MJ/L. Fossil fuels and hydrogen way more.

That 40kJ/L is for the entire system including the cyronics. Get rid of the cyronics and the system gets far far more energy dense.

Re: A room-temperature superconductor? New developments

#120

Post by bewaretheirs »

_Adam wrote: post #100
animatedb wrote: post #73

Earlier quoted context omitted.

Superconductor means low resistance. Low resistance means less loss due to heat on a wire. Room temperature superconductor also means more efficient magnets for motors, coils, ending up in cars, MRI machines, etc.

It'll be hard to make traditional motor windings out of this particular material because AFAIK it's a ceramic, but perhaps with thin films on flex PCBs it would be possible. I'm imagining a future where a superconducting layer on a PCB is just another checkbox you can choose when ordering small runs of boards. [ ] 1 oz copper [ ] 2 oz copper (+$2) [X] 10 micron LK-99 (+$10) Another thought - I think the first place w…

The theoretical papers I've seen (linked here in recent days) suggest that pure crystals of LK-99 would superconduct only in one dimension so it's likely to be fussier than that.

Perhaps it will be like a "tape" laid down with the proper orientation for each conductor. Perhaps you'll need separate north-south and east-west and maybe diagonal layers with special attention to inter-layer connections.

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