viscous liquid, or true solid
*
Plate XIV. Composite photograph showing path of each component particle of a foam cylinder.
(cropped from border, and squared; sharpened one step)
George F. Becker (1847-1919 *) and Arthur L. Day 1869-1960 *). “An Interesting Pseudosolid.”
Proceedings of the Washington Academy of Sciences 7 (July 24, 1905) : 289-299
Princeton copy, (miscellaneous Papers from the Geophyical Library, Carnegie Institution), digitized January 11, 2010
Harvard copy (opening to above image), archive.org
epigram 289
—
“We next turned to the white of egg... (it is imperative that it be very fresh)” 290
“The remainder of the process was mechanical.” 293
tags:
dots; particles; pseudosolids; twisted prisms
G. F. Becker; A. L. Day