And so our object, the particle, will sink in the fluid and that means that it will travel down along the fluid and to the end of that test tube. And if we look at this equation, if this quantity is less than one, then one minus a value less than one is a positive quantity. That means the S value, the sedimentation coefficient, will, in fact be a positive value. So a positive sedimentation coefficient means it will move through that fluid while a negative means it will float on that fluid. And if this is zero, that means it will not move inside that fluid. So this is the equation that we use to basically describe the rate of movement of particles inside our centrifuge when the process of centrifugation is taking place.