|Unit system||Metre-tonne-second system of units|
|MTS base units||1 t?m/s2|
|SI units||1 kN|
|British Gravitational System||224.8089 lbf|
The sthène (French: [st?n]; symbol sn), sometimes spelled (or misspelled) sthéne or sthene (from Ancient Greek: , romanized: sthénos, lit. 'force'), is an obsolete unit of force or thrust in the metre-tonne-second system of units (mts) introduced in France in 1919. When proposed by the British Association in 1876, it was called the funal, but the name was changed by 1914. The mts system was abandoned in favour of the mks system and has now been superseded by the Système International (SI).
sthéne force. Symbol sn. Metric-m.t.s. That which produces an acceleration of 1 m·s-2 when applied to a mass of 1 t[onne] = 1 kN. Originally called the funal when proposed by the British Association in 1876, it was renamed by 1914. It was authorized in France by statute of 1919 as part of the m-t-s system.
In the m.t.s. system the unit of force, for example, is the sthene, which gives an acceleration of 1 m·s-2 to a body of 1 t[onne]...