1 Like

Northern Lights Þingvellir Information Office
Iceland

A quick guide to Northern Lights...

The sun gives off high-energy charged particles (also called ions) that travel out into space at speeds of 300 to 1200 kilometres per second. A cloud of such particles is called a plasma. The stream of plasma coming from the sun is known as the solar wind. As the solar wind interacts with the edge of the earth's magnetic field, some of the particles are trapped by it and they follow the lines of magnetic force down into the ionosphere, the section of the earth's atmosphere that extends from about 60 to 600 kilometres above the earth's surface. When the particles collide with the gases in the ionosphere they start to glow, producing the spectacle that we know as the auroras, northern and southern. The array of colours consists of red, green, blue and violet.

Read more about the Northern Lights here.
Copyright: Tom Mills
Type: Spherical
Resolution: 6000x3000
Taken: 24/04/2008
Uploaded: 16/09/2008
Updated: 28/02/2015
Views:

...


Tags: science
comments powered by Disqus

Malinnikov Ruslan
Old power substation in Pusha Vodica (1935)
luis davilla
Anttolanhovi villas. saimaa lake. finland
luis davilla
Tertin Kartano hotel in mikkeli. finland
panoramas-thailand.com
Provincial building in Nathon Koh Samui
Jeff Fillmore
Welcome to my Treehouse
Aleksandr Reznik
Basilica di Santa Maria Maggiore
Renzo Falconi
Diaccia Botrona-bridge-
luis davilla
gran jaguar temple in tikal maya ruins. guatemala
Vasilis Triantafyllou
Moon Eclipse 15 June 2011 Platamon Greece
jacky cheng
2011-05-22-chengdu test
Udo Lenkewicz
burn out
yunzen liu
Tianluokeng tulou cluster 2 Fujian
Tom Mills
Iceland Excursions
Tom Mills
Bridge leading into Canary Wharf Station
Tom Mills
Hotel Leifur Eiriksson Rooms
Tom Mills
Greenwich Market
Tom Mills
Whale Trips and Museum
Tom Mills
Rue Laalouj
Tom Mills
Fishermen Statue
Tom Mills
Riad Jdi 2
Tom Mills
Uganda Oil Nzizi
Tom Mills
Uganda Oil Parliament View 1
Tom Mills
London New Year 2011 1
Tom Mills
Carnaby Street
More About Europe

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.