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The poise (symbol P; ) is the unit of dynamic viscosity
Viscosity

Viscosity is a measure of the Drag of a fluid which is being deformed by either shear stress or extensional stress. In everyday terms , viscosity is "thickness"....
 in the centimetre gram second system of units
Centimetre gram second system of units

The centimetre-gram-second system is a metric system of units of measurement based on centimetre, gram, and second. All of CGS mechanicss are unambiguously derived from these three base units, but there are several alternative variants of extending the CGS system in electromagnetism....
. It is named after Jean Louis Marie Poiseuille
Jean Louis Marie Poiseuille

Jean Louis Marie Poiseuille pw?-'z?i was a France physician and physiologist.Poiseuille was born in Paris, France.From 1815 to 1816 he studied at the ?cole Polytechnique in Paris....
.
1 P = 1 g搾m-1新-1


The analogous unit in the International System of Units
Si

Si, si, or SI may refer to :...
 is the pascal second (Pa新):

1 Pa新 = 1 kg搶-1新-1 = 10 P


The poise is often used with the metric prefix centi-. A centipoise is one one-hundredth of a poise, and one millipascal-second (mPa新) in SI units.






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The poise (symbol P; ) is the unit of dynamic viscosity
Viscosity

Viscosity is a measure of the Drag of a fluid which is being deformed by either shear stress or extensional stress. In everyday terms , viscosity is "thickness"....
 in the centimetre gram second system of units
Centimetre gram second system of units

The centimetre-gram-second system is a metric system of units of measurement based on centimetre, gram, and second. All of CGS mechanicss are unambiguously derived from these three base units, but there are several alternative variants of extending the CGS system in electromagnetism....
. It is named after Jean Louis Marie Poiseuille
Jean Louis Marie Poiseuille

Jean Louis Marie Poiseuille pw?-'z?i was a France physician and physiologist.Poiseuille was born in Paris, France.From 1815 to 1816 he studied at the ?cole Polytechnique in Paris....
.
1 P = 1 g搾m-1新-1


The analogous unit in the International System of Units
Si

Si, si, or SI may refer to :...
 is the pascal second (Pa新):

1 Pa新 = 1 kg搶-1新-1 = 10 P


The poise is often used with the metric prefix centi-. A centipoise is one one-hundredth of a poise, and one millipascal-second (mPa新) in SI units. (1 cP = 10-2P = 10-3 Pa新) Centipoise is properly abbreviated cP, but the alternate abbreviations cps and cPs are also commonly seen.

Water has a viscosity of 0.0089 poise at 25 蚓, or 1 centipoise at 20 蚓.

See also