how does a room temperature superconductor not violate one of the laws of thermodynamics?
The first room-temperature ambient-pressure superconductor?
641–650 of 906 posts
Re: The first room-temperature ambient-pressure superconductor?
#642Guys, 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…
It would be super room temp. I don't apologize.
Re: The first room-temperature ambient-pressure superconductor?
#643Earlier quoted context omitted.
My understanding is that modern CMOS circuits dissipate around 1 pJ (10^-12) per bit, so even if we are limited by the Landauer's principle, it would still be a 9 orders of magnitude improvement. I would surely love a CPU that uses microwatts instead of hundreds of watts.
I apologize, I couldn't not resist to the occasion of being technically correct. I should also have stated that a superconductors based CPU would be incredibly cool figuratively and physically!
While a room temperature superconductor would potentially have some uses in building a CPU… it’s not as relevant as you might think due to the semiconductor being the operating physics at play to make the transistors and perform the electrical switching and everything stemming from that underlying electrical unit.
You could absolutely use superconductors for all the connecting wires, and with a little engineering it might also be good for conducting heat away from the chip die as part of the larger CPU package… it wouldn’t be a good interface material (pins for connecting to the motherboard) as you want oxidisation resistance and a level of ductility and malleability to help with making a very good electrical connection between the surfaces when they are mechanically pressed together. But overall it will have some uses, it’s just not an immediately applicable technology for the silicon chips themselves… lots of potential in circuit designs and I’m sure if someone invented a way to lay this material onto a PCB as easily as we can print copper traces on them today that inventor would get pretty rich… it’s just not likely to make much of a change to the silicon chip die itself due to the need for semiconductors to do the transistor switching …
Of course someone might have invented a superconducting transistor that I haven’t heard of and if that’s the case disregard most of what I’ve just written haha.
Re: The first room-temperature ambient-pressure superconductor?
#644This would absolutely change the world if they can make it transfer any meaningful current. I'm in awe.
Just keep the Pierson's Puppeteers away. :)
Re: The first room-temperature ambient-pressure superconductor?
#645Guys, 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…
[deleted]
Re: The first room-temperature ambient-pressure superconductor?
#646After skimming the paper, it reads like a legitimate paper even though I have zero expertise in the area. That it is in Word instead of LaTeX makes it feel a bit less legitimate to me and they could of course always have some error in there setup. The most notable thing to me was that this was done in a thin film where structural defects are supposedly responsible for strain in the material which in turn enables the…
How much is latex used for papers outside of computer science? Medical researchers I know generally used word for their papers.
Same here. The researchers I know in medicine all seem to use word.
Re: The first room-temperature ambient-pressure superconductor?
#647Earlier quoted context omitted.
Complicated fakes wouldn't masquerade as scientific papers though. The FTL neutrino comes to mind, where it turned out to be a misconnected fiber optic cable - but everyone involved was genuine. The bits and pieces of this certainly look like little are being genuine, so the new question is what non-obvious mistake could they be making?
The FTL neutrino paper was not a fraud, but a genuine error. The publicity was practically, “This can’t be right, but here’s what we saw.”
It's my impression, and it seems to be the consensus here that it is very unlikely that this is a mistake. This is either very real or completely fabricated. You don't have a piece of ceramic keeping its distance to a magnet by some unexpected phenomenon or measurement error.
And given the easiness in reproducing the study, there doesn't seem to be any point in fabricating it.
Re: The first room-temperature ambient-pressure superconductor?
#648Anyone smarter than me know how this differs from this sham a few years ago?
https://news.ycombinator.com/item?id=24777268
Also, I see a lot of people claiming superconductors could become household items. What are super conductors even made of? Are these materials accessible to normal people?
Re: The first room-temperature ambient-pressure superconductor?
#649Earlier quoted context omitted.
I want them to have enough current passing through them in a rod shape that it will run the current against the Earth's magnetic field to cause vertical movement.
This gave me a giggle to think about - mind expanding on what you’re thinking of using movement scenario for?
The GP wants to lock the skateboard on the East/West direction, of course.
Re: The first room-temperature ambient-pressure superconductor?
#650The method to produce this material as described in the related paper [1] is fairly simple and could be done at home with a $200 home metal melting furnace from amazon and the precursors (which also seem to be fairly standard easy to obtain metals). If this is real, I'd expect some smart people from hackaday / youtube to reproduce this within weeks if not days. If this is real, it'll change society quickly and perman…
You need a furnace that can hold a vacuum, though.
[deleted]