Convert torr to poundal/square foot
Please provide values below to convert torr [Torr] to poundal/square foot [pdl/ft^2], or Convert poundal/square foot to torr.
How to Convert Torr to Poundal/square Foot
1 Torr = 89.5884952030218 pdl/ft^2
Example: convert 15 Torr to pdl/ft^2:
15 Torr = 15 × 89.5884952030218 pdl/ft^2 = 1343.82742804533 pdl/ft^2
Torr to Poundal/square Foot Conversion Table
| torr | poundal/square foot |
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Torr
The torr is a unit of pressure defined as 1 millimeter of mercury (mmHg) at standard gravity and temperature, approximately equal to 133.322 pascals.
History/Origin
The torr was introduced by Evangelista Torricelli in 1644, based on his experiments with mercury barometers, as a unit to measure atmospheric pressure. It was historically used in meteorology and physics before the adoption of the pascal.
Current Use
Today, the torr is primarily used in fields like vacuum technology, physics, and medicine (e.g., blood pressure measurements), although it has largely been replaced by the pascal in most scientific contexts.
Poundal/square Foot
The poundal per square foot (pdl/ft^2) is a unit of pressure representing the force of one poundal applied over an area of one square foot.
History/Origin
The poundal is an imperial unit of force introduced in the 19th century as part of the foot-pound-second system, primarily used in engineering contexts. The unit pdl/ft^2 was used historically in mechanical and civil engineering to measure pressure but has largely been replaced by SI units.
Current Use
The poundal per square foot is rarely used in modern practice, having been largely replaced by the pascal (Pa) in scientific and engineering applications. It may still appear in legacy systems or specific regional engineering contexts.