Innovation, self-reliance become hallmarks of China’s tech startups
Visitors watch a humanoid robot play the piano at an expo held in Shenzhen, Guangdong province, on April 24, 2025. [Photo/Xinhua] SHENZHEN – How small can a sensor be? In the southern Chinese tech hub of Shenzhen, the answer is just 8.5 millimeters in diameter. The world’s smallest optic-based force sensor to date was developed…









