Chronology Current Month Current Thread Current Date
[Year List] [Month List (current year)] [Date Index] [Thread Index] [Thread Prev] [Thread Next] [Date Prev] [Date Next]

Re: [Phys-l] buoyancy on a submerged pole


On 14 Nov, 2010, at 18:44, Rauber, Joel wrote:

I don't know if this is apocryphal or not; but allegedly Al Einstein was shown either a drawing or the actual device, and immediately was able to describe how to the the weight into the cup - guarranteed.


This is actually a true storyt: Eric Rogers gave Einstein such a device as a birthday present for Einstein's 76'th birthday. Details can be found in: "The Equivalence Principle demonstrated- The Problem" (by Eric Rogers) and "The Solution" by I. Bernard Cohen. All that can be found on pages 131-132 of: "Einstein, a Centenary Volume", edited by A. p. French, Harvard University Press Cambridge, MA. 1979 (ISBN 0-674-24230-0)

I built such a device and often used it with teachers in our in-service course - great success!





Uri Ganiel
Professor Emeritus
Department of Science Teaching
The Weizmann Institute of Science
Rehovot 76100, Israel

Tel: 972-8-9343895
Mobile: 972-54-7517725
Fax: 972-8-9473677

Email: uri.ganiel@weizmann.ac.il