Spinning Plasma: The Gravitational Physics of Blood Centrifuges

The separation of human blood into its life-saving components—plasma, platelets, and red blood cells—relies on the relentless manipulation of gravity. Inside clinical laboratories, this task is performed by high-speed centrifuges.These machines spin biological samples at thousands of revolutions per minute, generating extreme G-forces that force the heavier cellular elements to the bottom of the v...