Oddly enough - David Cameron, and his starry-eyed shadow transport minister (whose name I have forgotten) have been talking up a UK Maglev project for the proposed London/Scotland high speed line.

It's no less silly here it would be elsewhere. A conventional TGV - or better, a Northern extension to the Channel Tunnel line - makes a lot more sense.

Meanwhile New Scientist has been reporting the imminent arrival of room temperature superconductors for a while - but obviously they're still not here yet.