วันศุกร์ที่ 23 เมษายน พ.ศ. 2553

The Evolution of Transportation

People and things have always had the need to move or be moved from one place to another. People have always looked more comfortable and faster ways to travel. Transport is a way to move people and things from one place to another. different environments require different modes of transport.

People, machines, vehicles, or invented as a craft to travel. Some cars drive on the ground, like a train. Some vehicles that travel on water like a jet ski. Somealso help people move under the water like a submarine. People use different types of crafts in air travel. Ballooning is an interesting way to travel across the sky.

Handicrafts such as rockets can help people to travel in space. to travel through the centuries, inventors of machines or means of improving people is always faster.

Ships and boats

One of the first opportunities for the transport of persons and property by traveling inWater. The boats are small craft used commonly for a specific purpose, such as fisheries. The ships are larger vessels that could use sails or motor, drive through the water. You can travel on rivers, lakes or oceans.

Paddle boats

People use flat panels called paddles to row small boats. An oar is another name for a paddle. A raft is a simple flat-bottomed boat. We can use a raft of logs or records. Sometimes, flat pieces of wood boards are called boundtogether to make a raft. Some rafts are made of rubber or plastic called vinyl. These are often inflatable rafts.

The first Native Americans in canoes from tree trunks. They dug the trunk and used a shovel to move from one place to another. Today, an artificial substance, made up of people, is a popular fiber material for the construction of a canoe.

A kayak is a simplified version of a canoe with one or two small holes. The holes are where people sit. A pilot may be an attack watertightto prevent skin or additions to water entering the boat. The boat can run all the way without sinking. Some people come into kayak race. The Olympics have had a kayaking event since 1936.

Ships with sails and motors

Other boats and ships to use different kinds of power. A sailboat used piece of canvas or other fabrics like swollen sails filled by wind and pushes the boat forward.

The ancient Egyptians used boats to move the stones for the pyramidsfrom Aswan to Giza. Pilgrims traveled from England to reach large sailboat called the Mayflower to America in 1620.

A motorboat uses an electric motor and propeller. metal propeller blades rotate in the ship to help the passage through the water. A speedboat is a small boat, but very fast. Motorboats pull water-skiers to help the coast guard or navy to patrol, rescue, or maybe even a race.

larger boats and ships

Most large ships are made of metalsuch as iron or steel. Using engine giant propeller to move through the water. A steamer is a great boat. A steam engine wheel loader to move the boat.

The largest oil tankers and aircraft carriers. Oil tankers can carry millions of barrels of oil in areas of large transport. The designers built tankers can travel long distances, and other oil transport them to water, chemicals, LPG or natural gas.

Aircraft carriers are long, flatWarships designed to act as a mobile air base. Planes taking off and landing on top of the vessel.

A submarine is a ship, the metal can travel under water. A submarine can be small enough to be one or two people and stay for a few hours under water. Can be very large, have a crew of more than eighty people and stay under water for several months.

Trains

A train is a vehicle that runs on rails or tracks. Train passengers can have many subjectsPeople who travel from place to place. freight trains carrying goods or property. several cars carry different types of items.

Refrigerated transport food. Containers need a car hoist for lifting cargo into or out of the car. Tanker cars carrying various types of liquids.

Light Rail

Some people use the term light rail trains on the talk run on city streets. A car that is also a tram, a type of light rail technology. The firstThe trams were pulled by horses or even people. Modern trams generally obtain their power from electricity. Electricity makes things work.

The Metro is a light rail car. A subway train running in the streets and underground tunnels. Many large cities have a network of underground tunnels.

Big Trains

Big trains with wheels running on rails. Drive long distances between towns and cities. The first car on a train, the locomotive. The engine powers the train.The first trains used motors evaporate. Today most of the trains with electricity from gas or electricity. high-speed rail trains are electric trains, which run on faster than a regular train to form a ball sometimes. These high-speed rail systems to transport people in Germany, Korea and Spain. The first countries to build and use the Bullet Train, the countries of France and Japan.

The monorail is a different type of turn. Most monorail systems on a single track running. Some monorailssuspended. The cars actually hang from the line.

Automotive

People driving and occupants of motor vehicles in most of the world. Motor vehicles are equipped with wheels and an engine. They can be mounted on many different areas of land. Cars, buses and trucks would allow people and things in certain places. You can travel, can not go where the boats and trains.

Cars

The cars are vehicles used by people to get from one place to another. Internal combustion engines are often theEnergy source for automobiles. This type of burning engine to run on petrol or diesel. Some people are worried that the combustion engine contributes to environmental pollution in the air.

The inventors are developing other types of Power Systems, to run cars. Electric cars have electric motors that run on batteries. Some hydrogen to power cars. A hybrid car uses an internal combustion engine and battery to work the machine.

Cars of various sizes. A limousine is a long carhas room for many passengers and one driver was driving the vehicle. A micro-car, like a bubble machine, is very popular in countries outside the United States. automobile manufacturers have developed to use less gas Microcar. It 'also economically, because a small amount of material needed to build the car.

Some people like to drive a sports car. The fastest cars are race cars. Some cars have special properties, such as convertible bonds, the substance or a hard top that have wrinkles,back.

Bus

Buses are bigger than cars. A bus has a long body with several rows of seats for passengers. Buses usually operate on a schedule. A passenger bus can carry people long distances. Drive between various cities and countries. A tour bus carrying tourists or holiday. Some people rent or lease buses for special purposes.

Trucks

Car-truck engineers to conduct all types of materials. Pickup trucks are a bit 'bigger than cars.You have a flat bed behind the cabin. You can bring a lot of things in the bed plate. Big transport trucks of various types of heavy materials or equipment. They bring things in places where you can not drive the trains and boats. A 18-Wheeler is a very big truck. It has 18 different wheels.

Plan

balloons, airships and blimps

Aircraft, vehicles or machines, air letting people traveling. The first type of aircraftTransport was the hot air balloon. It 's the oldest successful human flight technology for implementation. Swim with a large silk or nylon bag filled with heated air. People will travel in a wicker basket called a gondola hanging below.

An airship or dirigible is like a balloon. The balloon filled with helium to help him stay afloat. He has a motor to drive it. This type of boat was very popular before 1940.

As technology improved for aircraft, peoplestopped using airships to travel. Today, advertisers use the airship to market their products. Some companies offer guided tours of the city in an airship.

Planes, gliders, helicopters

An airplane is an airplane, with wings and an engine to fly. The Wright brothers credit for inventing the first aircraft in 1903. And small aircraft can carry only one or two people. large commercial passenger airplanes, and many take a long distance in no time. An enginegoes around the propeller. Most aircraft have more powerful engines. This engine type has many blades rotate inside. They move much faster than normal air propellers.

Jet aircraft use turbines to make them faster. The U.S. military supersonic aircraft like fighters or bombers quickly with a large amount of energy. A fighter jet is a small military plane that can go very fast. The Concorde is a supersonic aircraft used only as a commercial airplane.It carried passengers from Europe to America in less than half the time for a regular plane was to fly the same route. The Concorde flew very expensive. Because of escalating costs, the use of the Concorde retirement. The last Concorde flight was October 24, 2003.

A helicopter is an aircraft with a large propeller on top. You can get in the air or off, and straight. A helicopter can take off without a runway.

A glider has a shape similar to aPlane. It uses only the wind for power. The sailors can use to provide military troops. Gliders are very quiet because you do not have a motor. Some people take part in competitive sailing.

Rockets

A rocket is a vehicle that air transport in case of a very high speed. It burns fuel to make the push. Thrust pushes and pushes up the rocket. A rocket engine generates thrust from the bottom of the rocket. Much energy is needed to propel a rocketspace. Energy is needed to make things happen. Astronauts and cosmonauts are people in space rockets. Rockets also carry a satellite into orbit to its destination. Satellites to study Earth and other objects in the universe.

Rocket Design and Travel

multiple sections or stages are the design of most rockets. Each level contains its own supply of fuel and rocket engines.

When its fuel is exhausted, a rocket is released. This eases the burden ofRocket. Allows us to travel faster. A rocket must be at least 17,700 mph, travel (28,500 kilometers), to put it out of the atmosphere in the room, which is the so-called "escape velocity". Part of the rocket, which is often reached that place as a spaceship.

Booster

Some rockets are extra thrust carrier rockets. Scientists usually put the booster on the side of the main rocket. The Space Shuttle is both a missile and a plane. ItPress the two booster rockets. Its use as rocket fuel, is also an external version of the tank. The Space Shuttle lands like an airplane when it returns to earth.

Some important dates in the development of transportation Time Line:


1662 - Blaise Pascal invented a horse-drawn public bus.
1783 - Joseph Montgolfier and Étienne Montgolfier launched the first balloon.
1814 - George Stephenson built the first practical locomotive powered by steam.
1900- Ferdinand von Zeppelin built the first successful airship.

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