It looks like you mentioned "pound-force square second per foot". This is a compound unit that can be broken down into:
pound-force (lbf): a unit of force
square second (s²): time squared
per foot (ft⁻¹): per unit length
What does this unit represent?
It could be a unit for something like mass or inertia-related quantities in imperial units, depending on context. For example, it might show up in equations involving force, time, and length — possibly in mechanics or engineering.
To understand or convert it:
Pound-force (lbf) is a force unit, where:
1lbf=4.44822N
Second squared (s²) is just time squared.
Foot (ft) is length:
1ft=0.3048m
Example usage
If you want to convert pound-force square second per foot (lbf⋅s2/ft) into SI units:
lbf⋅s2/ft→Newton⋅s2/meter
Since
1lbf=4.44822N,1ft=0.3048m
1ftlbf⋅s2=0.3048m4.44822N⋅s2≈14.6mN⋅s2
Could you tell me more about where or how you want to use this unit? That would help me give a more specific explanation or conversion!
Ton (Assay) (UK) [AT (UK)]
The assay ton (UK) is a traditional British unit of weight used mainly in the mining industry for assaying ores. It is specifically designed to standardize the quantity of ore tested to determine its precious metal content.
One UK assay ton is equal to 28 pounds (about 12.7 kilograms). This is different from the British long ton (2,240 pounds) and allows for consistent sampling in metallurgical testing.
The assay ton (UK) provides a practical and uniform measurement for assessing the value of mineral deposits, especially in the context of gold and silver extraction.