"The aptitude of matter to disaggregate by emitting effluves[1] of particles analogous to those of the cathode rays, having a speed of the same order as light, and capable of passing through material substances, is universal. The action of light on any substance, a lighted lamp, chemical reactions of very different kinds, an electric discharge, etc., cause these effluves to appear. Substances termed radio-active, such as uranium or radium, simply present in a high degree a phenomenon which all matter possesses to some extent." [Gustave Le Bon, The Evolution of Matter, page 6]
[1] No exact equivalent for this word can be found in English, and I have therefore retained it throughout.—F. L.
See Also
Atomic Cluster X-Ray Emission
Cosmic Rays
Current
Emission
Field
Flow
Odic Activity Ray
Odic Ray - Hollingshead
Odic Ray
odic rays
ODIC-ACTIVITY RAYS
Radiation
Radiation
Radioactivity
Rays
Stream
The Odic Ray - Its Origin and Nature
triune rays of Infinity
Violet Ray Machine
X-ray