{disambiguate=unit}
{c}
{title2=T}
{wiki}


Tesla

Tesla (unit)

As of 2023 the most important ones economicaly were:
* <Nb-Ti>: the most widely used one. Used e.g. to create the <magnetic fields> of the <Large Hadron Collider> Up to 15 <Tesla (unit)>[T].
* <Nb-Sn>: more expensive than <Nb-Ti>, but can reach up to 30 <Tesla (unit)>[T].
The main application is <magnetic resonance imaging>. Both of these are have to be <Liquid helium>, i.e. they are not "<high-temperature superconductor>" which is a pain. One big strength they have is that they are <metallic>, and therefore can made into wires, which is crucial to be able to make <electromagnetic coils> out of them.


Most important superconductor material

{tag=Niobium compound}

= Nb-Ti
{synonym}
{title2}


Niobium-Titanium

{c}
{tag=Innovative university}
{title2=2009-}

https://www.uopeople.edu/[].

Online and free. Pay only for exams, i.e. <exam as a service>. Almost perfect according to <Ciro Santilli>'s idea.

TODO is teaching material open or not?
* https://www.uopeople.edu/programs/online-bachelors/computer-science/
* https://www.forbes.com/sites/lucielapovsky/2021/10/18/almost-free-college--only-pay-when-you-finish-a-course-university-of-the-people/?sh=4030186c18ef
Asked: https://twitter.com/cirosantilli/status/1687865554722562048

\Video[https://www.youtube.com/watch?v=6kH-uYwt0qs]
{title=An ultra-low-cost college degree by <Shai Reshef> (2014)}
{description=
* <peer tutoring>
* https://youtu.be/6kH-uYwt0qs?t=526 <how to teach/Text is cheaper than video>
}


University of the People

{tag=Videos of all key physics experiments}

TODO!!! Even this is hard to find! A clean and minimal one! Why! All we can find are shittly levitating <YBCO> samples in <liquid nitrogen>! Maybe because <liquid helium> is expensive?

https://physics.stackexchange.com/questions/69222/how-can-i-put-a-permanent-current-into-a-superconducting-loop

\Video[https://www.youtube.com/watch?v=ba9zUW2Xf8Y]
{title=First 10T Tape Coil by Mark Benz}
{description=Dr. Mark Benz describes the first commercially sold superconducting magnet made by him and colleagues in 1965. The 10 Tesla magnet was made at GE Schenectady and they sold magnets to research facilities world wide before the team formed Intermagnetics General.  IGC and Carl Rosner went on to pioneer MRI technology.}


Superconductor coil experiment video

Superfluid helium

Open license

Schmidt Futures

Titanium compound

Tin compound

{tag=Tin compound}
{wiki}

= $Nb_3Sn$
{synonym}
{title2}

= Nb-Sn
{synonym}
{title2}

Second most important superconducting material: <applications of superconductivity>.


Ciro Santilli @cirosantilli  40