Resene Karaka is a rainforest green, muddy, masculine and intense. Also available as a Resene CoolColour. A change in tone or product may be required for some colours to achieve a Resene CoolColour effect.esene Colour Wheels. The colour wheel is designed to simplify colour selection, allowing users to work to basic colour scheme guidelines, such as complementary, split complementary and analogous, to quickly develop colour schemes. Find out more about colour wheels.
Sources of radiation and biological effects, including cancer and damage to cells and genes. Radiation and Health Physics, n.d Radiation and Health Physics, University of Michigan Student Chapter of the Health Physics Society.
Radiation in the Environment. Many forms of radiation are encountered in the natural environment and are produced by modern technology. Most of them have the potential for both beneficial and harmful effects. Even sunlight, the most essential radiation of all, can be harmful in excessive amounts. Most public attention is given to the category of radiation known as ionizing radiation.. This radiation can disrupt atoms, creating positive ions and negative electrons, and cause biological harm.