The Igloo and the Natural Bridge as Ultimate Structures
The Eskimo snow igloo is not a hemisphere as frequently depicted, but a catenoid of revolution with an optimum height-to-diameter ratio. This shape eliminates ring tension and shell moments and therefore prevents failure by caving or bulging. Rainbow Natural Bridge, Utah, is a catenary, probably bec...
| Published in: | ARCTIC |
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| Main Author: | |
| Format: | Article in Journal/Newspaper |
| Language: | English |
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The Arctic Institute of North America
1973
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| Subjects: | |
| Online Access: | https://journalhosting.ucalgary.ca/index.php/arctic/article/view/65978 |
| Summary: | The Eskimo snow igloo is not a hemisphere as frequently depicted, but a catenoid of revolution with an optimum height-to-diameter ratio. This shape eliminates ring tension and shell moments and therefore prevents failure by caving or bulging. Rainbow Natural Bridge, Utah, is a catenary, probably because of weathering along the trajectory of maximum compressive stress. |
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