انقباض طول: تفاوت میان نسخه‌ها

[[Image:Slabs.svg|frame|Left: a ''rotated cuboid'' in three-dimensional euclidean space '''E'''³. The cross section is ''longer'' in the direction of the rotation than it was before the rotation. Right: the ''world slab'' of a moving thin plate in Minkowski spacetime (with one spatial dimension suppressed) '''E'''^1,2, which is a ''boosted cuboid''. The cross section is ''thinner'' in the direction of the boost than it was before the boost. In both cases, the transverse directions are unaffected and the three planes meeting at each corner of the cuboids are ''mutually orthogonal'' (in the sense of '''E'''^1,2 at right, and in the sense of '''E'''³ at left).]]

 

'''انقباض طول''' که به '''انقباض لورنتس–جرالد''' نیز معروف است، یکی از نتایج نظریهٔ [[نسبیت خاص]] است که [[آلبرت اینیشتین]] در سال [[۱۹۰۵ (میلادی)|۱۹۰۵]] ارائه داده بود.