Radioactivity Scientific discovery has done much to verify the occult axiom that there are no permanent bodies, but that everything is in a state of flux and interchange. Theosophy views the physical universe as an ocean of life, partly imbodied and partly noncorporeal, and regards such terms as matter, energy, wave, and particle as descriptive of various manifestations of this life. The chemical elements are now considered by science to be centers or vortices in a fluid ocean, continually giving and receiving emanations from each other. Thus all forms of physical matter emit radiation and radioactive phenomena are instances of a general law. The emanations studied by science are described partly as actinic rays and partly as emitted particles; and the disintegration series results in a continual emission of both these forms of emanation, accompanied by an elevation of the temperature of the radioactive body above that of its surroundings, a loss of its own mass, the formation of temporary unstable elements of lower atomic weight, until an end-product is reached. Calculations as to the age of the solid crust of the earth, based on disintegration rates, are extremely unreliable, as they involve unverified assumptions as to the rate of this process in past ages. Theosophy states that during the descending arc of cosmic evolution, the process of concretion is predominant, and during the ascending arc the process of disintegration or etherealization is predominant. This indicates that the rate of radioactive disintegration has been on the increase in comparatively recent times, and will continue at an enlarging rate into the geologic future.