Wikipedista:JiriZamecnik/Překladiště: Porovnání verzí
Smazaný obsah Přidaný obsah
Bez shrnutí editace |
Bez shrnutí editace |
||
Řádek 1:
[[File:Stuhrling Tourbillon Movement.ogv|thumb|280px|Stührling Tourbillon Movement ([[:File:Stuhrling Tourbillon Movement.ogv|high resolution]]).]]
In [[horology]], a '''tourbillon''' ({{IPAc-en|icon|t|ʊər|ˈ|b|ɪ|l|j|ən}}; {{IPA-fr|tuʁbijɔ̃|lang}} "whirlwind") is an addition to the mechanics of a watch [[escapement]]. Developed around 1795 by the French-Swiss watchmaker [[Abraham-Louis Breguet]] from an earlier idea by the English chronometer maker [[John Arnold]], a tourbillon aims to counter the effects of [[gravity]] by mounting the [[escapement]] and [[balance wheel]] in a rotating cage, to negate the effect of gravity when the timepiece (and thus the escapement) is stuck in a certain position.
Originally an attempt to improve accuracy, tourbillons are still included in some expensive modern watches as a novelty and demonstration of watchmaking virtuosity. The mechanism is usually exposed on the watch's face to show it off.
==Úpadek a znovuobnovení zájmu, moderní vývoj==
| |||