Simulate the process of donkeys grinding flour, experience the charm of traditional craftsmanship
1. Click "Start Grinding" to start the mill
2. The mill rotates one circle every 5 seconds and produces flour
3. Click "Stop Grinding" to pause work
4. Click "Reset" to clear statistics
Grinding Distance = Circles × 5m
Earth Circles = Distance ÷ 40,075km
Truck Count = Flour Weight ÷ 5,000,000g (5-ton truck)