2 ms·

Or, the superconductor that is in US or maybe Chinese government labs.

• atoav 3y ago
  Pk-99? All the scientists that know about material science were sceptical. The material isn't that hard to make, the actual testing is the hard part. But of course maybe there is a secret superconductor somewhere in some lab. Maybe there is also a invisble teapot circling the moon. We will never know.