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.
World War I Facts. World War, I also known as the First World War, was a global war centered in Europe that began on 28th July 1914 and lasted until 11th November 1918. The war lasted exactly four years, three months and 14 days.Before World War II began in 1939, World War I was called the Great War, the World War or the War to End all Wars. 135 countries took part in World War I, and more than 15 million people died.See the fact file below for more information about World War I.W1 Facts for Kids. 1  World War I began on June 28, 1914. 2  World War 1 was triggered on 28 June 1914 by the assassination of the Archduke Franz Ferdinand of Austria and his pregnant wife Sophie.