RT @RnaudBertrand
China developped a new "electromagnetic sledge" train that goes up to 1030km/h (640mph).

Besides ultra-fast ground transport, they say a key applications is aerospace. Yet another sign that they are going for O'Neill's "high frontier" vision.

A small 🧵
https://www.scmp.com/news/china/science/article/3196667/hurry-chinas-electromagnetic-sledge-cruises-nearly-speed-sound