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During vigorous exercise, muscles are not supplied with enough oxygen. This means that cells have to respire anaerobically. Anaerobic respiration involves no oxygen. This leads to a build-up of lactic aci...

Evaporation occurs when the most energetic particles in a liquid have enough energy to overcome the attractive intermolecular bonds and leave the liquid. Because only the hughest energy particles evaporat...

The term ‘superpower’ originated in 1943 with a series of lectures about the potential shape of a new post-war world order by Duch-American geostrategist, Nicholas Spykman. Then in 1944, William Fox...

In March 1860, the English philosopher John Stuart Mill stood up in the House of Commons and lambasted the Government, calling them ‘dys-topians’ with their ‘too bad’ vision for Ireland’s future (Mill, 20...

In 1962, Dean Acheson the United States Secretary of State at West Point asserted that ‘Britain has lost an empire, and has not yet found a role’. However, this cannot be taken at face value when evaluati...