Rocks are made of minerals. Well you see rocks eat minerals and because they don't have a bum they can't poo, so the minerals solidify and eventually the rock gets completely full and becomes one big lump of rock poo - which is just a lump of minerals.
A collet /ËkÉlÉ¨t/ is a holding deviceâspecifically, a subtype of chuck âthat forms a collar around the object to be held and exerts a strong clamping force on the object when it is tightened, usually by means of a tapered outer collar. It may be used to hold a workpiece or a tool.
It is used as a fastening device which allows rotational motion. Collar (n) A cylindrical feature on a part fitted on a shaft used to prevent sliding (axial) movement. Collet (n) A cone-shaped sleeve used for holding circular or rodlike pieces in a lathe or other machine.