8
votes
Area unit for mmHg pressure
My physics is a bit rusty, but the equation for pressure of a liquid is
p = ρgh
where rho is the density, g is the local gravity and h is the height of the column of liquid. As you can see from this ...
5
votes
Area unit for mmHg pressure
As per Narusan's answer, it's an artifact of the method of measurement from using a column of mercury in a curved vacuum tube.
Equivalent of 7.50062 mm of mercury is 1 kPa, or 0.150 psi or 10 ...
3
votes
Area unit for mmHg pressure
Consider a liquid of density ρ and volume V, its weight on the ground is:
p = ρ V
If this volume of liquid is a column of constant cross-section s over a height h, then:
p = ρ h s
The pressure this ...
3
votes
Area unit for mmHg pressure
When looked at dimensionally, "mmHg" as a pressure measurement is "cubic millimeters of mercury per square millimeter". Basic dimensional analysis says that you can cancel your ...
Only top scored, non community-wiki answers of a minimum length are eligible
Related Tags
blood-pressure × 104blood × 14
cardiology × 11
blood-circulation × 10
hypertension × 5
heart-disease × 4
heart × 4
sodium × 4
heart-rate × 4
medications × 3
side-effects × 3
terminology × 3
stroke × 3
brain × 2
blood-tests × 2
water × 2
medical-device × 2
measurement × 2
sports × 2
salt × 2
heart-attack × 2
hydration × 2
blood-vessels × 2
sensors × 2
sleep × 1