In engineering school (in the US), we used pounds mass (lbm) as the unit of mass...

		treebog on Oct 5, 2021 \| parent \| context \| favorite \| on: Conterintuitive facts in mathematics, CS, and phys... In engineering school (in the US), we used pounds mass (lbm) as the unit of mass, and pounds force (lbf) as the unit of force.