The spread of a group of organisms into new habitats

Usage examples of radiation.

A goodly number were aflight, but those that had gone between planet and star were suicides, sending only bare glimpses before heat and radiation killed their electronics.

Access fore and aft is through a shielded tunnel, since anyone inside the compartment when the reactor is critical would be dead within a minute from the intense radiation.

These could be filled with aqueous solutions which absorbed the same amount of radiation as the tissue they represented.

Preliminary sketch of the sleep or nyctitropic movements of leaves--Presence of pulvini--The lessening of radiation the final cause of nyctitropic movements--Manner of trying experiments on leaves of Oxalis, Arachis, Cassia, Melilotus, Lotus and Marsilea and on the cotyledons of Mimosa--Concluding remarks on radiation from leaves--Small differences in the conditions make a great difference in the result Description of the nyctitropic position and movements of the cotyledons of various plants--List of species--Concluding remarks--Independence of the nyctitropic movements of the leaves and cotyledons of the same species--Reasons for believing that the movements have been acquired for a special purpose.

He wondered, vaguely, if some radiation from the Arthen Stone was causing this effect.

From Terra to Neuhafen, to Gardenia, to Asperity, to Quintesme and the radiation labs.

By itself, neither was particularly important or active, but together they reacted with each other atomically to release a tremendous amount of raw heat and comparatively little unwanted radiation.

When he turned around, he saw Bap a few feet off, holding a radiation counter.

Carl Simonton, a radiation therapist with Oncology Associates, Fort Worth, Texas, uses a combination of meditation, visualization and biofeedback techniques in treating cancer patients.

Rod levels, capacitor flow, compensators, thruster controls, rackers, pressure gauges, and the jeklight radiation charge.

Just as Kelsey, briskly interviewing Chia on the circumstances of her life, had devised the cover for her impending absence: ten days in the San Juans with Hester Chen, whose well-heeled luddite mother so thoroughly feared electromagnetic radiation that she lived phoneless, in a sod-roofed castle of driftwood, no electricity allowed whatever.

I should not have neglected to add that the damage to the ozone layer through the use of chlorofluorocarbons and similar substances in the twentieth century has brought about a serious intensification of incoming solar radiation, adding to the problem of global warming.

I closed my eyes and refused to look at the half-ruined school as we drew nearer it, and I tried desperately to build the mental equivalent of a lead shield around my sixth sense, to shut out the unwanted clairvoyant radiations that, instead of water, composed the oncoming destructive wave.

Worst leaks look to be primary coolant, and the radiation level in the reactor compartment is climbing.

It is a rule of wide generality, that whenever there is any difference in the degree of exposure to radiation between the upper and the lower surfaces of leaves and leaflets, it is the upper which is the least exposed, as may be seen in Lotus, Cytisus, Trifolium, and other genera.