MODERN FORENSIC SCIENCE - WALLNER LINES

WALLNER, HELMUT.

Linienstrukturen an Bruchflächen.

Berlin, Springer, 1939. 8vo. In contemporary halv cloth with gilt lettering to spine. In "Zeitschrift für Physik", Bd. 114, 1939. Entire volume offered. Stamp to front free end-paper and titlepage, otherwise fine and clean. Pp. 368-78. [Entire volume: VIII, 749 pp.].

First printing of Wallner's important paper on microscopic lines - Wallner Lines - in various materials. Wallner lines are microscopic fractures that propagate on a rigid surface. Using the Wallner lines, it is possible to determine the speed at which a surface is cracked. The method works for example on glass, epoxy, tungsten and carbon-filled rubber. The measurement of Wallner lines are a standard method of modern forensic science.

Order-nr.: 49187