1867 - 1962
A. E. Douglass American Scientist
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A. E. Douglass is a member of the following lists: 1962 deaths, American astronomers and 1867 births.
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Details
| First Name |
A.
|
| Middle Name |
E.
|
| Last Name |
Douglass
|
| Birthday |
5th July, 1867
|
| Birthplace |
Windsor, Vermont
|
| Died |
20th March, 1962
|
| Place of Death |
Tucson, Arizona
|
| Zodiac Sign |
Cancer
|
| Nationality |
American
|
| Occupation |
Scientist
|
A. E. (Andrew Ellicott) Douglass (July 5, 1867 in Windsor, Vermont – March 20, 1962 in Tucson, Arizona) was an American astronomer. He discovered a correlation between tree rings and the sunspot cycle, and founded the discipline of dendrochronology, which is a method of dating wood by analyzing the growth ring pattern. He started his discoveries in this field in 1894 when he was working at the Lowell Observatory. During this time he was an assistant to Percival Lowell, but fell out with him when his experiments made him doubt the existence of artificial "canals" on Mars and visible cusps on Venus.
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