1. Wheel
A wheel is a circular component that is intended to rotate on an axle. The wheel is one of the main
components of the wheel and axle which is one of the six simple machines. Wheels, in conjunction with
axles, allow heavy objects to be moved easily facilitating movement or transportation while supporting a
load, or performing labor in machines. Wheels are also used for other purposes, such as a ship's wheel,
steering wheel and flywheel.
Actually no one know about who was the author of this invention it is like the fire no one know exactly who can
control the combustion but the oldest wheel founded in 2002 has about 5 thousand year I mean 3 thousand
years BC
Then the ancient civilizations as the Egyptians, Greeks, romans, were developing different uses for the wheel
and also were improving its performance
The first vehicleswerewooden sleds, and must have beenused bytribesfrom around theworld.Tocarry
heavylogswere usedas aroller, and finally built itone piece, tying the logswith woodcrossand tiethe whole thing
withstripsof leather.
Then,immediately appear the inventionof the wheel, one of the most wonderfulin history.From thisinvention,
was developed all kinds ofland transport.
In the transportation, the animals appear because the humans were not strong enough to carry the heavy
burdens so they start using dogs, then bull, horses, ox, elephants an all the possible strong animals
Ahorseexertingone horsepowercan raise330 pounds ofcoal100 feetin one minute, or 33 pounds ofcoalat
1000feet in one minute, or 1000 pounds33 feetin one minute,etc.
remember that one meter is about 3 feet.
Da Vinci’s Car

2. DaVinci's designs for aself-propelled vehiclewere revolutionaryfor its time.His "car" of woodwas
drivenby the interactionof springs withsprockets.Scientists ata museumin Florence builta replicain
2004and found it workedasDa Vinciintended.
Before the industrial revolution began, was created a machine that works with steam scientific realized that the
steam has the enough power to move things
Edward Somersetwas an inventor, detailing more than 100 inventions,including a device that would have been
one of the earliest steam engines
Then a Frenchwatchmaker calledNicolas-Joseph Cugnot was a Frenchinventor. He is believed to have built the
first self-propelled mechanical vehicle, He trained as a military engineerHe experimented with working models
of steam-engine-powered vehicles for the French Army, intended for transporting cannons, starting in 1765.
A steam engine is a heat engine that performs mechanical work using steam as its working fluid
But what was theCoalwhat make it possible
the coal (from the Old English term col, which has meant "mineral of fossilized carbon" since the 13th century)
[1]
is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers or veins
called coal beds or coal seams this was used to heat the water till its boiling point
The history of the automobile begins as early as 1769, with the creation of steam engine automobiles capable of
human transport but what is and automobile
An automobile, auto car, motor car or car is a wheeledmotor vehicle used for transportingpassengers, which
also carries its own engine or motor.
The word automobile comes, via the Frenchautomobile from the Ancient Greek word αὐ τός (autós,
"self") and the Latinmobilis ("movable"); meaning a vehicle that moves itself. The alternative name car
is believed to originate from the Latin word carrus or carrum ("wheeled vehicle"), or the Middle
English word carre ("cart") (from Old North French)

3. The innovation of Cugnot was applied for the transport of heavy things, but it was a single model, because it
was extremely heavy and impractical. Could fit 4 passengers and was moving at the speed of a man
walking at a normal pace. Its use was, besides, extremely dangerous, because there was a risk that the
steam boiler were to explode due to the high pressure
In 1784 William Murdoch built a steam carriage model and in 1801 Richard Trevithick drove a vehicle in
Camborne (UK). In these early vehicles were developed innovations like the hand brake and wheel speeds.
In 1815JosefBozek, built an engine-powered car withaceite.2WalterHancock,in 1838, Robert Davidsonbuiltan
electric locomotivethatreached 6kmper hour.Between 1832and 1839RobertAndersoninvented thefirst cardriven
bynon-rechargeableelectric cells.
The Belgian Etienne Lenoir made work a car with an internal combustion engine around 1860, powered by coal
gas.
KarlBenzbuilt hisfirst modelin 1885 inMannheim.BenzpatentedtheJanuary 29, 1886and beganproducingin
1888.Soon after,GottliebDaimlerand WilhelmMaybachin Stuttgartdesigned theirown carin 1889.
The one whoinvented themodern automobilewas theGerman engineerCarlBenz.
Benzindustrial enginesbegan buildingin 1883.By 1885, Benz, installed on a tricycle, a single cylinder
engine, whichworked wonders, andledhimthroughouthis city.By 1886, Benz patented hiscar, becoming
who invented themodern automobile.

4. The power source or more exactly the heart of these machines is called engine.An engine or motor is a machine
designed to convert energy into useful mechanical motion.
But there are two important types of engine
External combustion engine which was invented by Joseph Cugnot and the internal combustion engine develop
by Carl Benz but how does it work???
Well an external combustion engine (EC engine) is a heat engine where an (internal) working fluid is
heated by combustion in an external source, through the engine wall or a heat exchanger. The fluid then,
by expanding and acting on the mechanism of the engine, produces motion and usable work.[1] The fluid
is then cooled, compressed and reused (closed cycle), or (less commonly) dumped, and cool fluid pulled
in (open cycle air engine).
An ECE work in this way
The internal combustion engine is an engine in which the combustion of a fuel (normally a fossil fuel) occurs
with an oxidizer (usually air) in a combustion chamber that is an integral part of the working fluid flow circuit. In
an internal combustion engine, the expansion of the high-temperature and high-pressure gases is produced by
combustion apply direct force to some component of the engine. This force is applied typically to pistons,
turbine blades, or a nozzle. This force moves the component over a distance, transforming chemical energy into
useful mechanical energy. The first commercially successful internal combustion engine was created by Étienne
Lenoir.[1]

5. 1. Intake
2. Compression
3. Power
4. Exhaust
This is the way in which the energy is transmitted

6. The time was running and the car was changing and with these changes came new parts
Henry Ford (July 30, 1863 – April 7, 1947) was an American industrialist, the founder of the Ford Motor
Company, and sponsor of the development of the assembly line technique of mass production. The introduction
of the Model “T”automobile revolutionized transportation and American industry.

7. Has the record of one of the most famous cars in the world
1. Toyota Corolla
2. Ford - F series
3. Volkswagen Golf
4. Volkswagen Beetle
5 Ford Model T
World's Most Expensive Cars:
1. Bugatti Veyron Super Sports$2,400,000. This is by far the most expensive street legal car
available on the market today (the base Veyron costs $1,700,000). It is the fastest accelerating
car reaching 0-60 in 2.5 seconds. 431km/h
The cheaper
El Chevrolet Chevette
The faster
Thrust ssc 1149 kmh. brake the sound barer
The smaller
Peel P50
The heaviestand the biggestwith 12.804Tons
Bagger 288
The most luxurious.theSaleen
Potential future car technologies include varied energy sources and materials, which are being
developed in order to make automobiles more energy efficient with reduced regulated emissions. Cars
are being developed in many different ways.
With rising gas prices, the future of the automobile is now leaning towards fuel efficiency, energy-
savers, hybrid vehicles, battery electric vehicles, and fuel-cell vehicles.