Friday, April 27, 2007

Transportation

Transportation is the movement of people and goods from one place to another. The term is derived from the porter ("to carry") and Latin Trans ("across"). Industries which have the business of providing equipment, actual transport, transport of people or goods and services used in transport of goods or people make up a huge broad and important segment of most national economies, and are collectively referred to as transport industries.

The field of transport has several aspects: loosely they can be divided into a triad of infrastructure, vehicles, and operations. Infrastructure includes the transport networks (roads, railways, airways, waterways, canals, pipelines, etc.) that are used, as well as the nodes or terminals (such as airports, railway stations, bus stations and seaports). The vehicles generally traverse on the networks, such as automobiles, bicycles, buses, trains, and aircrafts.

Tuesday, April 24, 2007

Corydon Airport

Corydon Airport is in south London on the limits of the London Boroughs of Corydon and Sutton. It was once the main airport for London, before it was replaced by Northolt Aerodrome, London Heathrow Airport and London Gatwick Airport.

It originated as two adjacent World War I airfields. Bedding ton Aerodrome, one of a number of small airfields around London which had been created for security against the Zeppelin raids in about May 1915, and Wad don Aerodrome of 1918, a test-flight aerodrome adjoining National Aircraft Factory No1.

At the end of that war, the two airfields were mutual into London's official airport as the gateway for all worldwide flights to and from the capital. Corydon Aerodrome opened on 29 March 1920.

It stimulated a growth in regular scheduled flights transport passengers, mail and freight, the first destinations being Paris, Amsterdam and Rotterdam. In 1923 Berlin flights were added. It was the operating base for Imperial Airways - remembered in the road name imposing Way on the site today.

In the mid 1920s, the airfield was extended, some adjacent roads being permanently closed to allow heavier airliners to land and depart safely. A new complex of buildings was constructed adjoining Purley Way, including the first purpose-designed air terminal in the world, the Aerodrome Hotel and extensive hangars, all opening on 2 May 1928.

The terminal building, the booking hall within it with its gallery balustraded in the geometrical design typical of the period, and the Aerodrome hotel were all built in the Art Deco style of the 1920s and 1930s. A further item that caught the eye of visitor and traveller alike was the time zone tower in the booking hall with its dials depicting the times in different parts of the world.

Wednesday, April 18, 2007

Satellite phone

A satellite telephone, satellite phone, or satphone is a mobile phone that communicates directly with orbiting communications satellites. Depending on the architecture of a particular system, coverage may comprise the entire Earth, or only specific regions.Satellite phone (Inmarsat)The mobile equipment, also known as a terminal or earth station, varies generally. A satellite phone handset has a size and weight comparable to that of a late 1980s or early 1990s cell phone, but with a large retractable antenna. These are popular on expeditions into remote areas where terrestrial cellular service is unavailable.A fixed installation, such as used shipboard, may include large, rugged, rack-mounted electronics, and a steerable microwave antenna on the mast that mechanically tracks the overhead satellites.

Monday, April 09, 2007

Columbia River

100 The Columbia River is a river located in British Columbia and the Pacific Northwest of the United States. It is the biggest river in volume flowing into the Pacific Ocean from North America, and the second largest in the United States. It is the largest hydroelectric power producing river in North America. From its headwaters to the Pacific Ocean it flows 1,270 miles, and drains 258,000 square miles.
Geography
Columbia River, Revelstoke, BCColumbia Lake forms the Columbia's headwaters in the Canadian Rockies of southern British Columbia. The river then flows through Windermere Lake and the town of Invermere, then northwest to Golden and into Kinbasket Lake. The river then turns south all the way through Revelstoke Lake and the Arrow Lakes to the BC–Washington border.
The river then flows throughout the east-central portion of Washington State. The last 300 miles of the Columbia form the Washington-Oregon border line. The river goes into the Pacific Ocean at Ilwaco, Washington and Astoria, Oregon.

For its first 200 miles the Columbia flows northwest; it then bends to the south, crossing from Canada into the United States, where the river meets the Clark Fork. The Clark Fork River begins near Butte, Montana and flows through western Montana before entering Pend Oreille Lake. Water demanding from the lake forms the Pend Oreille River, which flows across the Idaho panhandle to Washington's northeastern curve where it meets the northern Canadian fork.
Columbia River Gorge, Oregon or South SideThe River then runs southsouthwest through the Columbia Plateau, changing to a southeasterly direction near the Columbia Basin, where the magnificent Gorge at George is situated. The Gorge Amphitheater, which looks out over the gorge, is a spectacular 40,000 person concert venue.

Monday, April 02, 2007

Lightning

Lightning is an influential natural electrostatic release produced during a thunderstorm. Lightning's abrupt electric release is accompanied by the emission of visible light and other forms of electromagnetic radiation. The electric current passing through the release channels quickly heats and expands the air into plasma, producing acoustic shock waves in the atmosphere.

Early lightning investigate
During early investigations into electricity via Leyden jars and other instruments, a number of people planned that small scale sparks shared some similarity with lightning.

Benjamin Franklin, who also imaginary the lightning rod, endeavored to test this theory by using a spire which was being erected in Philadelphia. Whilst he was waiting for the spire completion some others conducted at Marly in France, what became to be known as the Philadelphia experiments that Franklin had optional in his book?

Franklin typically gets the credit for being the first to perform this research. The Franklin myth goes like this:

Whilst coming up for completion of the spire, he got the idea of using a flying object, such as a kite in its place. During the next shower, in June 1752, he raised a kite, accompanied by his son as an assistant. On his end of the string he emotionally involved a key and tied it to a post with a silk thread. As time passed Franklin noticed the loose fibers on the string stretching out; he then brought his hand close enough to the key and a flash jumped the gap. The rain which had fallen during the storm had covered with water the line and made it conductive.

However, in his memoirs, Franklin obviously states that he only performed this research after those made in France.

As news of the research and its specifics spread, it was met with attempts at duplication. Experiments involving lightning are always risky and commonly fatal. The most well known death during the rash of Franklin-imitators was Professor George Richman, of Saint Petersburg, Russia. He had shaped a setup similar to Franklin's, and was attending a meeting of the Academy of Sciences, when he heard thunder. He ran home with his engraver to capture the event for posterity. While the research was underway, a large ball lightning showed up, collided with Richman's head, and killed him, leaving a red spot. His shoes were blown open, parts of his clothes singed, the engraver knocked out, the doorframe of the room was split, and the door itself ragged off its hinges.