Ut tensio sic vis
≡ As the extension, so the force.
≡ Come l'estensione, così la forza.
Robert Hooke's expression of his law of linear elasticity.
Also: Motto of École Polytechnique de Montréal.
vo: Ten, tenere, tendere, tensione, estensione, tendine, tenero, tenace, tenaglia, tenda.