Passive smoking in public places remains a major health risk, often frustrating those nearby. To tackle this, a Bengaluru developer built an AI-powered device that detects smokers using computer vision. When it spots a cigarette, it plays audio of a baby coughing followed by a grandmother scolding the smoker in their local language. This creative "social nudge" effectively embarrasses people into putting out cigarettes, offering a playful yet practical way to protect public health.
