Commonwealth Fusion’s 20 Tesla Magnet: A Bright SPARC Towards Fusion’s Future

Image of CFS's SPARC reactor

After decades of nuclear fusion power being always ten years away, suddenly we are looking at a handful of endeavours striving to be the first to Q > 1, the …read more Continue reading Commonwealth Fusion’s 20 Tesla Magnet: A Bright SPARC Towards Fusion’s Future

Cook Up Your Own High-Temperature Superconductors

It looks more like a charcoal briquette than anything, but the black brittle thing at the bottom of [Ben Krasnow]’s crucible is actually a superconducting ceramic that can levitate magnets when it’s sitting in liquid nitrogen. And with [Ben]’s help, you can make some too.

Superconductors that can work at the relatively high temperature of liquid nitrogen instead of ultracold liquid helium are pretty easy to come by commercially, so if you’re looking to just float a few magnets, it would be a lot easier to just hit eBay. But getting there is half the fun, and from the look …read more

Continue reading Cook Up Your Own High-Temperature Superconductors