The functioning of the internal combustion engine four-quarters. Engine methods of work consists of four games 1 - a first half (way of withdrawal) and be in the development of horticulture down to the bottom. 2 - the second half, which (way down) and the development of horticulture in the ascent. 3 - half with a third (half power) and horticulture have put down to the bottom. 4 - the fourth quarter is (way of expulsion) and the development of horticulture in the ascent.

1 - way clouds; horticulture withdraw the mixture consisting of air and gasoline. 2 - way to pressure; horticulture is under pressure to top the mixture to the fullest degree. D 3 - way energy; based candle sparks to burn the mixture results in a mixture and the explosion of horticulture pay down strongly. 4 - way to expulsion; horticulture expel the combustion products outside of the cylinder. And repeated this process a certain order of the cylinders, depending on the engine and form Adeddalasitwanat also be the modus operandi of the Quartet-stroke engine

Bicycles are vehicles with Dali managed human energy, composed of frameworks Mmtsalin structure and one behind the other.

The bike of the most important means of transition in the modern era

The first motorcycle was invented as a way of transmission is the Count de Euphrates in 1790 was very simple and consists of a simple model of wood connecting the calf.

And did not happen by any development even in 1818 when the German came Dreze Baron de Norbert idea of the front wheel steering lead and installation of a bicycle.

But the Great Revolution valuable evolution of the bike came at the hands of mourning French name Pierre Michaud, who invented Pedals and the manufacture of this invention in 1861 and came after a difficult beginning of the revolution and fame has produced 150 motorcycle sold at 150 francs per gold.

And since that time has not exceeded improvements it is replaced with another wooden wheel in iron and in 1875 became hollow metal frame thanks to a generation Truffaut and then rubber-Glv.

.

Subway Train is a form of means of transport is a powerful engine operates coal, oil or electricity or other, and not behind it relates to vehicles, and follow the path set iron bars called the road.