the battle for rare earths, page-7

Uh - excuse me? Superconductors at 26K, or 55K? I distinctly remember hearing about materials that are superconducting at liquid nitrogen temperatures - that's 77K, or around -196 degrees C. A quick check of Wikipedia tells me that the highest known critical temperature for a superconductor is 135 K - around 138 degrees C below zero. That's for mercury barium calcium copper oxide (HgBa2Ca2Cu3Ox).

With all due respect, you either need to be a little more diligent in your research, or a little more precise in your reporting. Otherwise, when you put out something that is demonstrably incorrect, it casts doubt on everything else you've posted.