Catch up on some of SCMP’s biggest China science stories of the year. If you would like to see more of our reporting, please consider subscribing. 1. China unveils a powerful deep-sea cable cutter that could reset the world order A compact, deep-sea, cable-cutting device, capable of severing the world’s most fortified underwater communication or power lines, has been unveiled by China – and it could shake up global maritime power dynamics. 2. China tests non-nuclear hydrogen bomb, science paper...