Tourbillon
In horology, a tourbillon (/tʊərˈbɪljən/; French: [tuʁbijɔ̃] "whirlwind") is an addition to the mechanics of a watch escapement. Developed around 1795 and patented by the French-Swiss watchmaker Abraham-Louis Breguet on June 26, 1801, 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 (thus the escapement) is stuck in a certain position. By continuously rotating the entire balance wheel/escapement assembly at a slow rate (typically about one revolution per minute), positional errors are averaged out.
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.
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Tracklist: The Decade - 10th Anniversary Best
| No. | Title | Runtime |
|---|---|---|
| 1 | Heaven | 5:46 |
| 2 | アゲハ | 5:17 |
| 3 | 杞憂 | 5:36 |
| 4 | Lily | 5:24 |
| 5 | Saturation | 5:01 |
| 6 | バラは散る為に | 6:25 |
| 7 | Nameless Greenness | 4:54 |
| 8 | Your Place | 5:42 |
| 9 | Selfish | 6:03 |
| 10 | 眠りの森の君 | 5:14 |
| 11 | もう一度 君に | 7:09 |
| 12 | Colorless Images | 4:14 |
| 13 | 悪夢のスパイラル | 5:00 |
| 14 | Kagari-bi Feat.May J. | 4:28 |