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| An OTT Polar-Planimeter from the 1950's used to calculate surfaces and integrals in an analogue way. |
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| Total images: 11 | Create web photo albums with Jalbum | Chameleon skin | Help |
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| An OTT Polar-Planimeter from the 1950's used to calculate surfaces and integrals in an analogue way. |
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|
|
|
| |||||
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|
|
|
| |||||
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| Total images: 11 | Create web photo albums with Jalbum | Chameleon skin | Help |