William Ferrel | |
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| Born | January 29, 1817  Fulton County (United States) |
| Died | September 18, 1891 (aged 74) Wyandotte County (United States) |
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William Ferrel (January 29, 1817 – September 18, 1891) was an American meteorologist who developed theories that explained the mid-latitude atmospheric circulation cell in detail, and it is after him that the Ferrel cell is named.