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Amsler type planimeter

Prijs: Verkocht
Productnummer: 00 320816 f S
Een amsler type polaire planimeter met vaste index, in originele fluweel-linnen foedraal, werd gebruikt voor het meten van gebieden op tekeningen en kaarten. C 1890. Uitgevonden door j amsler professor in de wiskunde schaffhausen in 1854. Afmetingen foedraal 22 x 5 x 4 cm.

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Price: Sold
Productnumber: 00 320816 f S

An amsler type polar planimeter with fixed index, in original velvet-lined box, was used for measuring areas on drawings and maps. C 1890. The irregular outline of an area is followed by a tracing point causing motion to the mechanism and the computation is arrived at by multiplying the reading recorded on a graduated wheel by a given factor. Invented by j amsler professor of mathematics schaffhausen in 1854. Dimension case 22 x 5 x 4cm.

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