Re: Weighing Freight Car Models with Liquid Gravity


Tony Thompson
 

Dave Parker via Groups.Io wrote:

This was also discussed previously and, unless the shot are sufficiently large to preclude close packing in the available space, the weight you can gain does not depend on the diameter of the spheres, only on the density of the metal.  See post #139844.

     Or to put it another way, the proportion of space occupied by spheres, even in the closest packing, is independent of the size of the spheres.
      Of course, if you have a range of sizes of spheres, the little ones pack between the big ones. But if they are all the same size, using smaller ones changes nothing.

Tony Thompson             Editor, Signature Press, Berkeley, CA
2906 Forest Ave., Berkeley, CA 94705         www.signaturepress.com
(510) 540-6538; e-mail, tony@...
Publishers of books on railroad history





Join main@RealSTMFC.groups.io to automatically receive all group messages.