China has quietly built a machine that bends one of the most stubborn limits in physics research: gravity itself. By pushing hypergravity to levels roughly half again higher than the previous world ...

China is racing to build a self-sufficient artificial intelligence stack, from cutting edge chips to nationwide deployment, and its leaders now treat that effort with the urgency of a wartime program.

In the broad global AI race, the first names that usually come to mind are Nvidia, the maker of GPUs that form the foundation of data centers, and TSMC, which offers the factories where these chips ...