File:EB9 Geysers - Mackensie theory.jpg
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EB9_Geysers_-_Mackensie_theory.jpg (419 × 324 pixels, file size: 73 KB, MIME type: image/jpeg)
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A diagram representing the "Mackensie theory" concerning the origin of geysers
| Description |
English: Cross-sectional diagram of a geyser: “Let us suppose a cavity C, communicating with the pipe PQ, filled with boiling water to the height AB, and that the steam above this line is confined so that it sustains the water to the height P. If we suppose a sudden addition of heat to be applied under the cavity C, a quantity of steam will be produced which, owing to the great pressure, will be evolved in starts causing the noises like discharges of artillery, and the shaking of the ground.” |
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| Date | 1879; reused 1911 | |||
| Source | "Geyser" in the Encyclopaedia Britannica, 9th ed., Vol. X, p. 556. Reused for "Geyser" in the Encyclopaedia Britannica, 11th ed., Vol. XI., p. 914. | |||
| Author | Anonymous, after a diagram in George Mackenzie's Travels in Iceland, presumably engraved by John Bartholomew & Son or William & Alexander Keith Johnston | |||
| Permission (Reusing this file) |
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| Annotations | This image is annotated: View the annotations at Commons |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 16:50, 18 December 2015 | | 419 × 324 (73 KB) | Library Guy (talk | contribs) | {{Information |Description ={{en|1=Cross-sectional diagram of a geyser: “Let us suppose a cavity C, communicating with the pipe PQ, filled with boiling water to the height AB, and that the steam above this line is confined so that it sustains th... |
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