a normal inspiratory breath of say 500 ml in an adult requires a distending pressure of under 3cm H2O ^ "The lung as a low-pressure air pump".^ a b c "Appendix B8-Factors for Units Listed Alphabetically".^ Exact calculation: P = 1/2 * density of air * (wind speed)^2.^ "Get an intuition for pressure values".Archived from the original on 28 April 2011. University of North Carolina at Chapel Hill. How Many? A Dictionary of Units of Measurement. deepest layers reach pressures of no more than a few microbars operating pressures in the range 0.1–0.001 Pa Thermal separation processes: principles and design. Archived from the original on 18 November 2011. Noise and Hearing Conservation Technical Manual Chapter. Matloff, Solar Sails: A Novel Approach to Interplanetary Flight, Springer, August 2008 Archived from the original on 10 December 2005. ^ Jump up ^ – Sam's Laser FAQ – Vacuum Technology for Home-Built Gas Lasers. ambient pressure is in the range of 10^-10 to 5x10^-8 Torr. Archived from the original (PDF) on 15 October 2011.
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