4 ms·
What temperature?
by bilsbie 3y ago
What temperature?
- scarmig 3y ago326K (+127 deg F) and 340K (+152 deg F) for their less and more pure samples respectively. And, yes, if it's a superconductor as we understand them, that's the temperature at which it would have zero resistance as well.
- yreg 3y ago53°C and 67°C. Wow.
- seanthemon 3y agoSoon to be average temperatures, what luck!
- hksoftware 3y agoNonsense.
- yreg 3y agoIt's obviously a hyperbole. But if we once were to use these SCs to transport energy from solar farms in Sahara, it might have to operate in that temperature range.
- jacquesm 3y agoFive meters down in the desert you're under 25 degrees year round. It's the average that matters for soil temps, not the peaks. You can approximate this by taking the average air temperature and defining the surface as the top five meters. Below the 10 meter mark the day/night cycle influence is pretty much negligible (but that would be more costly). For instance: https://www.researchgate.net/figure/Temperature-variation-of-underground-soil-with-depth-for-typical-days-in-Malaysia-15_fig3_256838899 https://www.researchgate.net/figure/Temperature-variation-of...
- SamPatt 3y agoEarth's average temperature right now is ~17° Celsius. So...no.
- yreg 3y agoHave you included the insides?
- h0l0cube 3y agoBy comparison the hottest verified recorded air temperature in the world is 54°C > if the current record were to be decertified then the holder would be a tie at 54.0 °C (129.2 °F), recorded both at Furnace Creek and in Kuwait. https://en.wikipedia.org/wiki/Highest_temperature_recorded_on_Earth https://en.wikipedia.org/wiki/Highest_temperature_recorded_o...
- galangalalgol 3y agoOpen air. These days the interior of my car regularly exceeds 54 even with the windows cracked and a winshield shade up.
- bitcharmer 3y agoThanks, we really needed burger units here
- hinkley 3y agoSo that’s within the range of off the shelf cooling equipment to maintain superconductivity. Any speculation if that’s consumer, commercial, or industrial off-the-shelf? Sounds like we may be talking running an MRI off of a mini split system.
- cthalupa 3y agoLK99 isn't necessarily a stand-in for helium cooled superconductors - if all SC were equivalent to any other, YBCO and similar would have been enough to make MRIs significantly cheaper - LN2 is easy and cheap to produce.
- XorNot 3y agoThey got about 50 degrees C, but note that the bulk sample and the more pure tiny sample are different. It definitely contributes to the general feel that however this works, it's an inefficient synthesis that's problematically generating the material we want. It certainly makes me wonder if something like molecular-beam epitaxy would be able to directly grow a more pure sample (but I imagine that's expensive and time-consuming to setup, plus not really what we're hoping for if we want to use lots of it).