4 ms·
250K is -23C, or -9F, I.e. like a cold winter day. That’s really almost room temperature!
by ziofill 3y ago
250K is -23C, or -9F, I.e. like a cold winter day. That’s really almost room temperature!
- deleted 3y ago[deleted]
- GeoAtreides 3y agoCompared with the working temperature of NMR magnets (4K)[1], it _is_ room temperature! It's not STP (standard temperature and pressure, 0C/1atm), yet, but maybe soon! [1] https://www.indstate.edu/cas/chem_phys/filling-nmr-magnet https://www.indstate.edu/cas/chem_phys/filling-nmr-magnet
- margalabargala 3y ago> It's not STP (standard temperature and pressure, 0C/1atm Nit: STP is 20C/1atm, not 0C/1atm.
- GeoAtreides 3y agoNit's nit: depends on the defining body, IUPAC is 0C, NIST is 20C (as per wikipedia: https://en.wikipedia.org/wiki/Standard_temperature_and_pressure#Definitions https://en.wikipedia.org/wiki/Standard_temperature_and_press...
- margalabargala 3y agoHuh, today I learned. In chem in college I was just taught 20C.
- selimthegrim 3y agoNot 298K? (25C)
- stavros 3y agoNow you're nistpicking.
- NooneAtAll3 3y agoIUPAC is *S*TP, NIST is *N*TP standard and normal
- NooneAtAll3 3y agoSTP is 0C, NTP is 20
- RecycledEle 3y agoIt depends on where you live. Texas disagrees that -9 F is almost room temperature, though my freezers get that cold sometimes.
- partomniscient 3y agoOn a planet undergoing global warming.
- itishappy 3y agoWhile it's a lot for the planet as a whole, 2 or so degrees is trivial in these contexts. This discovery would raise the available temperature range of high temperature superconductors by 157 degrees K.
- aqme28 3y agoWhat's important is what you can use to cool it. Using helium to cool traditional superconductors is expensive and bulky. If we can cool superconductors with small Peltier coolers or your traditional fridge setup, that's a huge advantage.
- ramraj07 3y agoIf this was the issue, aren't Peletier coolers already able to reach -80 deg C already? I remember our research camera sensors being cooled to that temperature withoutbfuss and being there for months on end.. surely some other superconductors work at this range!
- ShockedUnicorn 3y ago-80c is 193K. Looking at https://en.wikipedia.org/wiki/List_of_superconductors https://en.wikipedia.org/wiki/List_of_superconductors there are 3 superconductors that work at that temperature or higher. But they all need very high pressures (150 GPa or higher). Which is close to the pressure in the centre of the earth (380 GPa). A more reasonable superconductor that's widely used is YBCO, which at 95K (-178c) is cooled using liquid nitrogen. And I believe that's at normal pressures.
- httpz 3y agoSome Russian scientists from 1800s may argue that is room temperature
- qingcharles 3y agoFrom Chicago here. Can confirm that is the setting on my thermostat.