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Boyle'sSelfFlowingFlask.png(320 × 282 pixels, file size: 59 KB, MIME type: image/png)

The figure is sometimes called "Boyle's perpetual motion scheme" (in honour of Robert Boyle ( 1627- 1691)), the "perpetual vase" or "perpetual goblet". It was discussed by Denis Papin ( 1647- 1712) in the Philosophical Transactions for 1685. It was even accepted by Johann Bernoulli ( 1667- 1748). Some commentators call it the "hydrostatic paradox". Some confuse the hydrostatic system with a capillary system.


Perpetual Motion, Paradox


Scanned by Donald E. Simanek (dsimanek of fame):

Scanned without alteration from Fig. 54 in Arthur W.J.G. Ord-Hume's Perpetual Motion, the history of an obsession. Allen & Unwin, 1977, St. Martins Press, 1977. It also appears in Dirck's books and many other places.

Scan used with Simanek's permission.

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