Swimming at the same Reynolds number as sperm

[ergospherical]

https://www2.gwu.edu/~phy21bio/Reading/Purcell_life_at_low_reynolds_number.pdf

“It helps to imagine under what conditions a man would be swimming at, say, the same Reynolds number as his own sperm”

 

[kuruman]

I remember hearing a great talk by Purcell with the same title about 40 years ago. It was of the kind that you understand everything perfectly as it was being said, yet one hour later you would be hard pressed to reconstruct the logical sequence of the arguments. Thanks for the memories.