and the vanes are pushed by springs against the chamber wall
unequal partitions—intake and discharge—improve efficiency.
I think the same advantage cannot be claimed
for people with eccentric behaviors—must be
there are other reasons we love them.
The human heart is a positive-displacement pump
that works like a diaphragm or membrane pump,
employing one-way valves on both sides of a flexible diaphragm.
The human heart is a positive-displacement pump that works like a diaphragm or membrane pump, employing one-way valves on both sides of a flexible diaphragm.
See also in The book of science:
Readings in wikipedia:
Other readings: