FitzGeraldn.

Brit.

/ˌfɪtsˈdʒɛrəld/,

/ˌfɪtsˈdʒɛrl̩d/, U.S.

/ˌfɪtsˈdʒɛrəld/

Etymology: < the name of George Francis FitzGerald (1851–1901), Irish physicist.

FitzGerald contraction or effect, the contraction or foreshortening of a moving body in a direction parallel to its direction of motion, small except at speeds comparable to that of light, that was postulated independently by G. F. FitzGerald and H. A. Lorentz in 1892. (The effect is frequently named after Lorentz or after the two men jointly.)

ΘΚΠ

the world > matter > physics > relativity > space-time > [noun] > contraction effect

FitzGerald contraction or effect1905

Lorentz contraction1908

1905 London, Edinb. & Dublin Philos. Mag. 6th Ser. 9 680 (heading) Report of an Experiment to detect the FitzGerald-Lorentz Effect.

1920 A. S. Eddington Space, Time & Gravitation i. 22 Let the reader suppose that he is travelling through the aether at 161,000 miles a second vertically upwards... For this speed the FitzGerald contraction is just ½, so that every object contracts to half its original length when turned into the vertical position.

1967 J. L. Anderson Princ. Relativity Physics vi. 133 Several attempts were made to explain the negative results of the Michelson-Morley experiment. One of these was the Fitzgerald-Lorentz contraction hypothesis, which postulated that material bodies were contracted as they moved through absolute space.

This entry has not yet been fully updated (first published 1972; most recently modified version published online March 2022).

单词	fitzgerald
释义	FitzGeraldn. Brit. /ˌfɪtsˈdʒɛrəld/, /ˌfɪtsˈdʒɛrl̩d/, U.S. /ˌfɪtsˈdʒɛrəld/ Etymology: < the name of George Francis FitzGerald (1851–1901), Irish physicist. FitzGerald contraction or effect, the contraction or foreshortening of a moving body in a direction parallel to its direction of motion, small except at speeds comparable to that of light, that was postulated independently by G. F. FitzGerald and H. A. Lorentz in 1892. (The effect is frequently named after Lorentz or after the two men jointly.) ΘΚΠ the world > matter > physics > relativity > space-time > [noun] > contraction effect FitzGerald contraction or effect1905 Lorentz contraction1908 1905 London, Edinb. & Dublin Philos. Mag. 6th Ser. 9 680 (heading) Report of an Experiment to detect the FitzGerald-Lorentz Effect. 1920 A. S. Eddington Space, Time & Gravitation i. 22 Let the reader suppose that he is travelling through the aether at 161,000 miles a second vertically upwards... For this speed the FitzGerald contraction is just ½, so that every object contracts to half its original length when turned into the vertical position. 1967 J. L. Anderson Princ. Relativity Physics vi. 133 Several attempts were made to explain the negative results of the Michelson-Morley experiment. One of these was the Fitzgerald-Lorentz contraction hypothesis, which postulated that material bodies were contracted as they moved through absolute space. This entry has not yet been fully updated (first published 1972; most recently modified version published online March 2022). < n.1905
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