A centrifuge is a piece of equipment, generally driven by an electric motor , that puts an object in rotation around a fixed axis, applying a force perpendicular to the axis. The centrifuge works using the sedimentation principle, where the centripetal acceleration causes denser substances to separate out along the radial direction .
By the same token objects that are less dense will tend to move to the top .
There are a few important guidelines for operating a centrifuge, even a small one ... The rotor will still spin due to its own inertia for a while until friction slows.
