Keywords: Boyle'sSelfFlowingFlask.png The figure is sometimes called Boyle's perpetual motion scheme in honor 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 Keywords Perpetual Motion Paradox Provenance Scanned by Donald E Simanek dsimanek of lhup edu fame http //www lhup edu/~dsimanek/museum/people/paradox gif 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 PD-old Robert Boyle Perpetual motion machines Pseudoscience Johann Bernoulli |