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.
You are here: History Lists Â· Events Â· 10 Events that Led to World War I 10 Events that Led to World War I World War I was caused by a combination of several factors but above all, it was caused by the tensions between the European powers and crisis of the balance-of-power system that divided Europe into two camps.