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| 2433 | Volume 11 | 13-Mar-48 | 2434 | Volume 11 | 1948 |
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Summary: Reporting progress in the machine. 2435 |
Summary: Social example of instability. |
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Society [18]: Actual example of unstable equilibrium in a country, 1851, two more examples, 2434. |
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| This page references 4 pages: 2081 2094 2182 2435 |

| This image is reproduced courtesy of The Estate of W. Ross Ashby. Copyright 1972, 2008 © The Estate of W. Ross Ashby |
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