CentrifugationBy Robolab Technologies In Atal Tinkering Labs ATL, More Info
Sometimes the solid particles in a liquid are very small and pass through a filter paper. For such particles the filtration technique cannot be used for separation. Such mixtures are separated by centrifugation. So centrifugation is the process of separation of insoluble materials from a liquid where normal filtration does not work well.
This video explains how to separate cream from milk.