I really hope we see some verification (the opposite) in the coming weeks/days. This is huge!
The first room-temperature ambient-pressure superconductor?
431–440 of 906 posts
Re: The first room-temperature ambient-pressure superconductor?
#432Earlier quoted context omitted.
Superconductors have a current limit above which they are no longer superconductors. It is possible that a room temperature superconductor could be created that has a limit too low to be of any practical use. It seems this is worth cautious excitement, but don't get too excited yet.
Couldn't we make really thick wires to increase the current limit :) ? After all, there's no need for expensive cooling and the material looks reasonably cheap! (assuming it's real, of course..)
Let's wait to see what the maximum number of A/cm^2 is before determining if that is even necessary.
It's possible that they already normalized the figure, and if that's the case then 125 mA/cm^2 would be 'bad news' in the sense that even though the temperature and pressure are much better than other superconductors the critical current is much, much worse. But given the way the paper is formulated I'm not sure if that is a proper reading and it is very well possible that they are talking about a particular thin film sample (which would make it a small fraction of a square centimeter in cross section) and how much current they passed through that sample. In which case the situation would be much better already, especially if it turns out that the sample was extremely thin and/or narrow.
Too early to tell without more information.
Re: The first room-temperature ambient-pressure superconductor?
#433One of the authors in a related paper[1] is Hyun-Tak Kim. He has many publications in peer-reviewed journals[2]. One even has > 1500 citations[3]. I can't tell if there is a catch anywhere, this seems pretty legitimate. Also, unlike some previous claims that required sophisticated setup to reproduce, this seems dead simple. I think we will hear from other researchers very soon. 1. Superconductor Pb10-xCux(PO4)6O show…
One catch would be the use of lead would restrict the use cases fairly heavily
Cobalt is way more toxic than lead and yet every consumer grade lithium ion battery contains it. The fact something is toxic is not that important. What is that we manage the end of life for the products it contains responsibly.
Re: The first room-temperature ambient-pressure superconductor?
#434Earlier quoted context omitted.
South Korea has been desperate for a Nobel prize for a long time. Don't be surprised if they jumped the gun for a false exciting result for national pride.
You're not gonna get a noble prize for unverified results.
It's almost happened before! https://youtu.be/nfDoml-Db64
Re: The first room-temperature ambient-pressure superconductor?
#435Is "Quantum Energy Research Centre, Inc." a well-known institution in its field?
It doesn’t need to be well known IMO. It just needs to be legitimate and by appearances it is given it is part of a major SK university.
Re: The first room-temperature ambient-pressure superconductor?
#436Earlier quoted context omitted.
^Soyjacks pointing^ Joking aside, besides power transmission, what other obvious things can this tech be used for?
I'm just going to link the comment I wrote above :) https://news.ycombinator.com/item?id=36867709 Needless to say, this would be game-changing. But extraordinary claims require extraordinary evidence etc, let's be cautiously optimistic here.
Thank bro! are we talking like no heat loss in the traces on the motherboard type a deal or also on a wafer level internal to the CPU?
Re: The first room-temperature ambient-pressure superconductor?
#437Earlier quoted context omitted.
> Superconductor Pb10-xCux(PO4)6O showing levitation at room temperature and atmospheric pressure Is it late April Fools joke? It can’t be true. Edit: I am not surprised it levitates. I am astonished by how much it will reshape our world if it is real room-temp and ambient-pressure superconductor. Also is easy to produce. Just too good to be true.
One obvious application: your family doctor will have an MRI machine in her office, same for all physio clinics
Not so fast... These superconductors although revolutionary loose superconductivity in high magnetic fields (or with high currents).
If this proves true I'd see their use more in electronic circuits. Novel sensors etc rather than classic high power high field uses people dream about when the words "room temperature superconductivity" gets thrown about.
Re: The first room-temperature ambient-pressure superconductor?
#438seems it already went thru some peer review here:
http://journal.kci.go.kr/jkcgct/archive/articleView?artiId=A...
Re: The first room-temperature ambient-pressure superconductor?
#439Earlier quoted context omitted.
MRI will get much cheaper, but you still need a good upper critical field and a proper access control (Zone 2/3/4) protocol. So probably not in very small buildings.
With room temperature superconductivity doesn't it become possible to turn the magnet on and off far more easily? MRIs would be much safer if they were only energized during the actual imaging process.
To turn the magnet off you need to get the current out, I don't see why raising the temperature would make that easy.
Re: The first room-temperature ambient-pressure superconductor?
#440- Please check out my paper, we just found a new superconductor, it has a critical temperature of 127 degrees. - Look, I'm a bit busy right now - Celsius
I re-read 127 celsius multiple times to try and make sure I understood that (260 Fahrenheit). This is a nice extra bonus, not only does this work at "room temperature", it works in death valley.
At 127 celsius, you have a lot of margin even over the hottest temperatures on earth (which appear to be mostly recognized as 56.7 °C) https://en.wikipedia.org/wiki/Highest_temperature_recorded_o....