@thephysicslabs on Instagram: "Watching a road roller squeeze loose rocks into a solid road looks insane, but it’s pure physics at work. 🚧 A road roller weighs many tons, and all that weight is focused through relatively small contact areas on its wheels or drum. This creates extremely high pressure on the ground. When the roller passes over gravel, the pressure forces rocks to shift, rotate, and settle into the smallest possible gaps. Air spaces collapse, friction increases, and the stones loc