4671 Sengers Voorwerkb 23-09-2002 09:17 Pagina I How fluids unmix 4671 Sengers Voorwerkb 23-09-2002 09:17 Pagina II History of Science and Scholarship in the Netherlands, volume The series History of Science and Scholarship in the Netherlands presents studies on a variety of subjects in the history of science, scholarship and academic insti- tutions in the Netherlands. Titles in this series . Rienk Vermij, The Calvinist Copernicans. The reception of the new astronomy in the Dutch Republic, -. , --- . Gerhard Wiesenfeldt, Leerer Raum in Minervas Haus. Experimentelle Natur- lehre an der Universität Leiden, -. , --- . Rina Knoeff, Herman Boerhaave (-). Calvinist chemist and physician. , --- . Johanna Levelt Sengers, How fluids unmix. Discoveries by the School of Van der Waals and Kamerlingh Onnes, , --- Editorial Board K. van Berkel, University of Groningen W.Th.M. Frijhoff, Free University of Amsterdam A. van Helden, Utrecht University W.E. Krul, University of Groningen A. de Swaan, Amsterdam School of Sociological Research R.P.W. Visser, Utrecht University 4671 Sengers Voorwerkb 23-09-2002 09:17 Pagina III How fluids unmix Discoveries by the School of Van derWaals and Kamerlingh Onnes Johanna Levelt Sengers , Koninklijke Nederlandse Akademie van Wetenschappen, Amsterdam 4671 Sengers Voorwerkb 23-09-2002 09:17 Pagina IV © Royal Netherlands Academy of Arts and Sciences No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photo- copying, recording or otherwise, without the prior written permission of the publisher. Edita , P.O. BOX , Amsterdam, the Netherlands
[email protected], www.knaw.nl/edita --- The paper in this publication meets the requirements of « -norm () for permanence This study was undertaken with the support of the Koninklijke Hollandsche Maatschappij der Wetenschappen (‘Royal Holland Society of Sciences and Humanities’) as part of its 250th anniver- sary celebrations in 2002.