Stress on surface of tempered glass in in range of 100 MPa. It's a lot less than the 170 GMa in this case, but perhaps it could get a bit higher in a similar ma

Stress on surface of tempered glass in in range of 100 MPa. It's a lot less than the 170 GMa in this case, but perhaps it could get a bit higher in a similar material and the threshold of superconductivity could be lowered.