Convert grain to pound-force square second/foot
Please provide values below to convert grain [gr] to pound-force square second/foot [lbf·s²/ft], or Convert pound-force square second/foot to grain.
How to Convert Grain to Pound-Force Square Second/foot
1 gr = 4.44013573879726e-06 lbf·s²/ft
Example: convert 15 gr to lbf·s²/ft:
15 gr = 15 × 4.44013573879726e-06 lbf·s²/ft = 6.66020360819589e-05 lbf·s²/ft
Grain to Pound-Force Square Second/foot Conversion Table
| grain | pound-force square second/foot |
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Grain
A grain is a unit of mass traditionally used to measure small quantities, primarily in the context of precious metals, pharmaceuticals, and firearms.
History/Origin
The grain dates back to ancient times and was originally based on the weight of a single seed of a cereal grain, such as barley. It has been used since the Middle Ages and was standardized in the apothecaries' system.
Current Use
Today, the grain is mainly used in the measurement of bullets, gunpowder, and precious metals, and is recognized as a unit of mass in the apothecaries' system, although it has largely been replaced by grams in most contexts.
Pound-Force Square Second/foot
A unit of dynamic force-time product, representing pound-force multiplied by seconds squared per foot, used in engineering contexts to measure force-related quantities over time and distance.
History/Origin
The unit originated from the British imperial system, combining the pound-force with a time squared and length unit to quantify specific force-time interactions, primarily in mechanical and structural engineering applications.
Current Use
Currently, the unit is rarely used in modern engineering, but it may appear in specialized calculations involving force, time, and distance in legacy systems or theoretical analyses within the imperial measurement framework.