Meet the American who invented the gas mask and the modern traffic signal

Luminica | AI & Tech Demos on Instagram: "China just deployed a real-life robot traffic cop in Hangzhou, and it’s wild. This 6-foot tall humanoid robot stands at busy intersections directing traffic like a human officer. But here’s the crazy part: it actually yells at people who break the rules. If you jaywalk or run a red light, it spins toward you, blows a digital whistle, and shouts polite warnings in Mandarin. It catches riders without helmets and cars crossing stop lines. The results? Traff