Example image of eyePlorer eyePlorer map for 'Mill (grinding)': Unit operation Mortar and pestle Watermill Windmill Working animal Electricity Attrition Force Physical compression Crusher Ball mill Friction Metal Rock (geology) Sphere Portland cement Cylinder (geometry) Slitting mill Pebble Iron Steel Fracture Pressure Plough Wheel Gristmill Almond meal Angle grinder Bliss Industries Dakeyne hydraulic disc engine Edge mill Molinology Mulhouse Polysius AG Powder mill VSI mill Conical mill Food heritage Herb grinder Horse mill Mount Brydges Farm and Garden Rockdale, Iowa Treadmill Waddesdon Winnibigoshish Lake Dam Barnston, Merseyside Blackwells Mills, New Jersey Corfe Mullen Edwin O. Stanard Myles