Poiseuille's Law of Laminar Flow (music video)
Channel: Greg Crowther
Date: 10/08/2014

A short song to help animal physiology students learn Poiseuille's Law. The "r times r times r times r" chorus helps emphasize that flow rate is highly sensitive to vessel radius (r). Song written and sung by Greg Crowther; guitar by Do Peterson; backing vocals by Lori DeGloria and Leila Zelnick; recorded by Do Peterson. Lyrics for this song, and information on all of Greg's other science songs: http://faculty.washington.edu/crowther/Misc/Songs/.

LYRICS:

When you wanna think-a like Poiseuille,
There's a formula you employ.
When the blood flows around and around and around,
The flow rate through a given vessel can be found

As R times R times R times R
(That's R to the fourth)
Times delta-P,
And that's all divided by
Eight over pi
Times the length of the vessel
Times viscosity.

R times R times R times R
(That's R to the fourth)
Times delta-P,
And that's all divided by
Eight over pi
Times the length of the vessel
Times viscosity.