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Fuel rods provide fissionable elements such as uranium - 235 , The uranium abosrbs a neutron at thermal speeds (  energy transefered to the moderator) from previous reactions. This then enables the Uraniu...

Auxins are degraded within the tips of the shoots of the plant exposed to sunlight, and gather on the shaded side of the shoots. Gathered auxins enourage cell elongation, and the shoot to grow upwards, to...

Similes and metaphors are used by writers to describe and they compare how one thing is similar to another. For example, instead of saying ‘the boy had blue eyes’ a writer might compare the colou...

An Open System is one in which one or more of the reactants or products are able to escape from the container. A Closed  System is one in which neither the reactants or the products can escape from the co...

Wagner’s Tristan und Isolde is one of the most significant works of the 19th century. It is particularly notable for a radical approach to melody and harmony. The appropriately named ‘prelude’, not ‘overt...