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...German scientists made two organic compounds containing phosphorus that were very effective at killing insect pests. However, they soon discovered that, even in minuscule amounts, the substances caused distressing symptoms in humans exposed to them. The two substances – too toxic to be used as commercial insecticides in agriculture – became known as tabun and sarin....

...course aims to give you an understanding of the application of physics to the techniques of radiotherapy, one of the key weapons in the fight against cancer. It is designed to enable you to develop a broad and balanced appreciation of this area of contemporary medicine, rather than a detailed ‘professional’ knowledge. The course explains the principles of applying...