Sound Mirror Denge three Mirrors
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Fotografie panoramica de
Geoff Mather
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Sound Mirror Denge three MirrorsThe World > Europe > UK > England |
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The Denge Sound Mirrors
These three concrete structures were built shortly after World War One, and formed part of a network of such mirrors intended to track aircraft across the country. The spherical surfaces reflect sound waves in much the same way as radio signals from satellities however by using spherical rather than parabolic dishes some measure of the direction can be obtained without having to physically move the dish .....
However before the network could be completed they fell into disuse as the speed of aircraft increased, the accuracy and range fell short of what was required.
For a detailed description of the structures visit the website Denge sound mirrors. Access to the site is very restricted with only a few days each year when access is available see the Romney Marsh Countryside Project for details.
The Denge Sound MirrorsThese three concrete structures were built shortly after World War One, and fo...
The Denge Sound MirrorsThese three concrete structures were built shortly after World War One, and fo...
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Europe is generally agreed to be the birthplace of western culture, including such legendary innovations as the democratic nation-state, football and tomato sauce.
The word Europe comes from the Greek goddess Europa, who was kidnapped by Zeus and plunked down on the island of Crete. Europa gradually changed from referring to mainland Greece until it extended finally to include Norway and Russia.
Don't be confused that Europe is called a continent without looking like an island, the way the other continents do. It's okay. The Ural mountains have steadily been there to divide Europe from Asia for the last 250 million years. Russia technically inhabits "Eurasia".
Europe is presently uniting into one political and economic zone with a common currency called the Euro. The European Union originated in 1993 and is now composed of 27 member states. Its headquarters is in Brussels, Belgium.
Do not confuse the EU with the Council of Europe, which has 47 member states and dates to 1949. These two bodies share the same flag, national anthem, and mission of integrating Europe. The headquarters of the Council are located in Strasbourg, France, and it is most famous for its European Court of Human Rights.
In spite of these two bodies, there is still no single Constitution or set of laws applying to all the countries of Europe. Debate rages over the role of the EU in regards to national sovereignty. As of January 2009, the Lisbon Treaty is the closest thing to a European Constitution, yet it has not been approved by all the EU states.
Text by Steve Smith.
