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. “A centrifuge is a device that uses rapidly spinning containers, to separate substances based on their density. The apparent centrifugal force pushes the denser materials to the extreme ends of the container while the less dense materials remain nearer the centre.
In this remarkable creation of Prof. Manu Prakash from Stanford University, we make a ““centrifuge““ using just cardboard, cotton thread, vials and a button. With one’s own hands, one can wind the thread and spin the cardboard at about 3000-4000 rpm, and easily separate certain colloidal mixtures, such as muddy water and even blood!“
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