Heat transfer is the exchange of thermal energy between physical systems. The rate of heat transfer is dependent on the temperatures of the systems and the properties of the intervening medium through which the heat is transferred. The three fundamental modes of heat transfer are conduction, convection and radiation.
Publisher. A+E Networks. In an event that is widely acknowledged to have sparked the outbreak of World War I, Archduke Franz Ferdinand, nephew of Emperor Franz Josef and heir to the Austro-Hungarian Empire, is shot to death along with his wife by a Serbian nationalist in Sarajevo, Bosnia, on this day in 1914.
Causes of the war. There was no single event that caused World War One (WWI). War happened because of several different events that took place in the years building up to 1914. Firstly, there was the role of empire.Great Britain, Germany, Austria-Hungary and Russia all had empires. This meant that they ruled many countries all over the world.owever, the trigger for the beginning of WWI occurred on 28 June 1914. Archduke Franz Ferdinand, the heir to the throne of Austria-Hungary, was shot while he was visiting Sarajevo in Bosnia. He was killed by a Serbian person, who thought that Serbia should control Bosnia instead of Austria.