Convert Tetradrachma (Biblical Greek) (tetradrachma) to Pound-force Square Second/Foot (lbf·s²/ft) instantly.
About these units
Tetradrachma (Biblical Greek) (tetradrachma)
A tetradrachma weighed about 17 grams, equivalent to four drachmas. It became one of the most widely circulated silver coins in the ancient world, especially under the Athenian empire. Athenian tetradrachms, often stamped with the iconic owl design, were standardized, highly trusted, and circulated across the Mediterranean as an international currency. Although now primarily of numismatic interest, tetradrachms are key archaeological artifacts, illuminating trade networks, political authority, and artistic expression.
Pound-force Square Second/Foot (lbf·s²/ft)
This unit is part of the British Gravitational System, where mass is defined from force rather than the other way around. It can be interpreted as an inertial mass unit, since applying 1 pound-force to it would produce an acceleration of 1 foot per second squared. Historically, before the SI system clarified the distinction between force and mass, engineering fields often used mixed systems where pounds could represent either force (lbf) or mass (lbm). The unit lbf·s²/ft was introduced to straighten out these ambiguities in dynamic calculations such as impact forces, mechanical oscillations, and safety load computations. Today, the unit survives mostly in engineering textbooks, legacy calculations, and historical documentation. It demonstrates how complex and inconsistent measurement systems once were, and why global scientific communities moved toward SI clarity.