The first room-temperature ambient-pressure superconductor?

Post by lazide » Tue, Jul 25, 2023, 10:22 PM UTC

geph2021 wrote: post #375

carabiner wrote: post #352

Earlier quoted context omitted.

Lead is used everywhere. Not in paint anymore but you can buy lead weights at hardware stores. Don't grind it up and put it in your muni water supply, but it's a household substance that is harmful if ingested, like many others.

another example, you can still buy lead based solder, even at a local hardware store.

Post by ReptileMan » Tue, Jul 25, 2023, 10:24 PM UTC

andreiklochko wrote: post #389

Guys, even if everything in this paper is true, the material as it is might have limited applications. From what they show, the critical field and critical current seem very low. 2500 Oe is like 0.25 Tesla. Even REBCO at 77K is >1T. And 2500 Oe is not even at critical temperature but much lower. From skimming through the article I couldn't find the sample size of the current measurement to get the critical current de…

Post by jacquesm » Tue, Jul 25, 2023, 10:25 PM UTC

andreiklochko wrote: post #389

Guys, even if everything in this paper is true, the material as it is might have limited applications. From what they show, the critical field and critical current seem very low. 2500 Oe is like 0.25 Tesla. Even REBCO at 77K is >1T. And 2500 Oe is not even at critical temperature but much lower. From skimming through the article I couldn't find the sample size of the current measurement to get the critical current de…

Post by pohl » Tue, Jul 25, 2023, 10:27 PM UTC

thehappypm wrote: post #401

andreiklochko wrote: post #389

Guys, even if everything in this paper is true, the material as it is might have limited applications. From what they show, the critical field and critical current seem very low. 2500 Oe is like 0.25 Tesla. Even REBCO at 77K is >1T. And 2500 Oe is not even at critical temperature but much lower. From skimming through the article I couldn't find the sample size of the current measurement to get the critical current de…

They've just proven (if true of course) that it's possible at all. That is a massive, massive leap. And once it's possible, it won't be long until it's optimized. We've seen this everywhere -- transistors were once huge and now nanometers; solar cells have improved in every where; batteries are cheaper and better than ever.

Post by Forgotthepass8 » Tue, Jul 25, 2023, 10:29 PM UTC

fijiaarone wrote: post #405

doctorwho42 wrote: post #380

Earlier quoted context omitted.

As a physicist, it's not a red flag... It's a red klaxon blaring out an alarm. I have only met a few physicists who don't write papers in latex. They are all 65+ and generally work with younger scientists/grad students who prepare the paper in latex for final drafts and submissions.

TeX was written in the 1970s for typesetting when there were no word processors by a computer programmer who couldn’t afford professional typesetting and couldn’t be bothered to learn assembly language so he wrote his own fictional one for his book — the same book he wrote TeX to publish.