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Back to the basics: how radiation affects our health

Radiation is ubiquitous; an inescapable part of life on Earth.  Background radiation reaches us from outer space, from the rocks and soils we walk on, and from naturally radioactive potassium in our own bodies.  Through its entire history, organisms on Earth have been bombarded by radiation, and this will continue for as long as the […]


Consider the impact of a single nuclear explosion – temperatures higher than the surface of the Sun vaporize everything within tens to hundreds of meters; pressure and shock waves rippling outward at the speed of sound shred buildings; and fissioning uranium or plutonium atoms produce huge amounts of radioactivity. There have been over 2000 nuclear […]