The spindle of an ultra-precision grinder spins at 30,000 revolutions per minute, its trajectory obscured. 

The moment the diamond grinding wheel contacts the workpiece, microscopic metal particles flake off, like fine snow falling from tree branches in early spring. 

The atomized liquid from the cooling system, with its minty coolness, condenses into fleeting mist on the lens. A scene at a CNG LPG KIT factory.