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Authors

F. C. Brown

Document Type

Research

Abstract

Sometime ago while filing away the surface of the selenium in a Giltay cell in order to find out directly certain limits on the depth of penetration of selenium by light, I discovered a new effect. This effect of mechanical rupture on light-positive selenium resembles in a general way the many other well-known effects in these varieties of selenium. Rupture produces an increase in the conductivity, but this increase is not permanent. The recovery is extremely slow, often requiring more than a month for the selenium to attain the electrical condition existing before rupture. The experiments are especially interesting because of their bearing on the dynamic equilibrium theory of light sensitive selenium.

Publication Date

1912

Journal Title

Proceedings of the Iowa Academy of Science

Volume

19

Issue

1

First Page

179

Last Page

184

Copyright

© Copyright 1912 by the Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

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