Many of them (Lorentz, Heaviside, Lodge, Fitzgerald, Lamor, and Einstein) explained the null effect of the Michelson-Morley experiment by the contraction of matter at movement.

• 很多人(罗伦兹；亥维赛；罗德吉；费兹吉拉；拉莫；以及爱因思坦)用移动物体的缩收；来解释"迈克森-莫利实验"的零结果.