Dr. Kind looks up from his work as he pedantically explains, "You see the average speed of descent is proportional to G or the gravitational field strength. If you have studied rotational motion, you would have learned that spinning an object in a circle of radius R with a speed V. Where V is the speed of the cell through the fluid and μ is the viscosity of the serum. A reasonable value for μ is about 1.7×10−3N s/m2.
That is equivalent to putting it in an effective gravitational field of magnitude G =v2/R.
In other words.... it will take a long time."
Dr. Kind returns to his machines, "Check back in a few days, and do try to find me some more samples, please."
anyone with the skill: knowledge Science can roll to check his work