🔬 Discovery

Lorentz–FitzGerald contraction

Contracción de Lorentz-FitzGerald

Date
1889 (FitzGerald) / 1892 (Lorentz) · confidence high
Place
Dublin, Ireland
Credited to
George FitzGerald (independently reformulated by Hendrik Lorentz in 1892)
Field
Cosmos & Earth

What was discovered

FitzGerald proposed that moving bodies contract along their direction of motion to explain why the Michelson-Morley experiment failed to detect the ether wind; Lorentz independently reached the same idea three years later. The effect, later explained by special relativity, was one of the first hints that space and time are not absolute.

FitzGerald proposed it in 1889 in a short, largely unnoticed article; Lorentz, unaware of it, reached the same formula in 1892 within his electron theory.

What it led to

  • Lorentz transformation
  • Special theory of relativity
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Sources✓ verified 2026-09-28