Growths on the surface of the eye can be unsightly and frightening. Most growths on the eye, which often occur as people age, pose no threat to health or vision and aren&rsquo;t cancers.
The unit of measure for static pressure is often inches of water (in. water). one inch of water is the suction needed to draw water up a straw one inch. pound per square inch static pressure (1 psi) is equal to 27.7 in. water static pressure. static pressure is given as Pascals (Pa).
Introduction to Pressure in Fluid Mechanics. 1  Pressure always acts inward normal to any surface (even imaginary surfaces as in a control volume). 2  Pressure is a normal stress, and hence has dimensions of force per unit area, or {ML-1T-2}. 3  Standard atmospheric pressure is 101.3 kPa (0.1013 MPa) or 14.69 psi.