To install click the Add extension button. That's it.

The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. You could also do it yourself at any point in time.

How to transfigure the Wikipedia

Would you like Wikipedia to always look as professional and up-to-date? We have created a browser extension. It will enhance any encyclopedic page you visit with the magic of the WIKI 2 technology.

Try it — you can delete it anytime.

Install in 5 seconds
4,5
Kelly Slayton
Congratulations on this excellent venture… what a great idea!
Alexander Grigorievskiy
I use WIKI 2 every day and almost forgot how the original Wikipedia looks like.
Live Statistics
Spanish Articles
Improved in 24 Hours
Added in 24 Hours
What we do. Every page goes through several hundred of perfecting techniques; in live mode. Quite the same Wikipedia. Just better.
Great Wikipedia has got greater.
.
Leo
Newton
Brights
Milds

Archivo:ISS-31 Linear dunes in the Great Sand Sea in southwest Egypt.jpg

De Wikipedia, la enciclopedia libre

Ver la imagen en su resolución original ‎(4288 × 2848 píxeles; tamaño de archivo: 1,11 MB; tipo MIME: image/jpeg)

Resumen

Descripción
English: Linear dunes in the Great Sand Sea in southwest Egypt are featured in this image photographed by an Expedition 31 crew member on the International Space Station.
  • In southwestern Egypt, deep in the Sahara Desert, the action of wind dominates landscapes today much as it has done for the past several thousand years. Winds blowing from the north have fashioned sands into large dunes, aligned parallel with these winds. The so-called linear dunes - shown here in the Great Sand Sea - are easily seen from space and local maps show that they rise 20--30 meters above the surrounding flat plains.
  • The distance between individual linear dunes is interestingly regular, at 1.5--2.5 kilometers, suggesting some equilibrium exists between the formative wind strength and the sand supply. It is possible that linear dunes may relate to earlier times when winds were stronger than they are today, or sand more plentiful. The dark patch of rock outcrop at upper right sticks up above the surface on which the dunes lie by as much as 150 meters.
  • The north winds have been deflected around this high zone, and smaller secondary linear dunes can be seen along the right side of the image, aligned with local winds that become ever more northeasterly with nearness to the outcrops. A dune-free zone on the protected downwind (south-southeast) side of the outcrop gives a sense of the sand movement (generally from the bottom of the image towards the top).
  • At first glance, the large linear dunes appear to be the major landform in the image; however a complex pattern of even smaller dunes can be seen perched on top of the largest dunes (inset). The sand that comprises many dune fields usually, according to scientists, derives from some larger river not very distant upwind, supplied from the dry river bed (exposed to the wind during dry seasons of low river flow, or regional change to a more arid climate).
  • Inland dune fields thus lie downwind of the source river. A large, unnamed river once flowed to the Mediterranean Sea situated west of the dunes shown in this picture, dumping its sand load 300 kilometers northwest of the area shown. It is likely that this river, the evidence of which is now almost completely obliterated, was the source of the sand in the linear dunes, the scientists say.
Fecha
Fuente http://spaceflight.nasa.gov/gallery/images/station/crew-31/html/iss031e030783.html
Autor NASA
Este archivo fue catalogado por
Johnson Space Center
de la Administración Nacional de Aeronáutica y del Espacio (NASA) de los Estados Unidos de Américabajo el identificador de foto: ISS031-E-030783.

Esta etiqueta no indica el estado de los derechos de autor del trabajo adjunto. Se requiere una etiqueta de derechos de autor normal. Para más información vea Commons:Sobre las licencias.
Otros idiomas:

العربية ∙ беларуская (тарашкевіца) ∙ български ∙ català ∙ čeština ∙ dansk ∙ Deutsch ∙ English ∙ español ∙ فارسی ∙ français ∙ galego ∙ magyar ∙ հայերեն ∙ Bahasa Indonesia ∙ italiano ∙ 日本語 ∙ македонски ∙ മലയാളം ∙ Nederlands ∙ polski ∙ português ∙ русский ∙ sicilianu ∙ slovenščina ∙ Türkçe ∙ українська ∙ 简体中文 ∙ 繁體中文 ∙ +/−

Licencia

Public domain
"The Gateway to Astronaut Photography of Earth". Imagen cortesía de Image Science & Analysis Laboratory, NASA Johnson Space Center.
 Fuente de la foto: ISS031-E-30783.

العربيَّة | Deutsch | English | español | français | italiano | kurdî | македонски | മലയാളം | português | sicilianu | +/−

Leyendas

Añade una explicación corta acerca de lo que representa este archivo

Elementos representados en este archivo

representa a

Historial del archivo

Haz clic sobre una fecha y hora para ver el archivo tal como apareció en ese momento.

Fecha y horaMiniaturaDimensionesUsuarioComentario
actual23:36 5 jun 2012Miniatura de la versión del 23:36 5 jun 20124288 × 2848 (1,11 MB)Ras67{{Information |Description={{en|1=Linear dunes in the Great Sand Sea in southwest Egypt are featured in this image photographed by an Expedition 31 crew member on the International Space Station. * In southwestern Egypt, deep in the Sahara Desert, the ...

La siguiente página usa este archivo:

Uso global del archivo

Las wikis siguientes utilizan este archivo:

Metadatos

Este archivo contiene información adicional, probablemente añadida por la cámara digital o el escáner usado para crearlo o digitalizarlo.

Si el archivo ha sido modificado desde su estado original, pueden haberse perdido algunos detalles.

Obtenido de «https://es.wikipedia.org/wiki/Archivo:ISS-31_Linear_dunes_in_the_Great_Sand_Sea_in_southwest_Egypt.jpg»
Basis of this page is in Wikipedia. Text is available under the CC BY-SA 3.0 Unported License. Non-text media are available under their specified licenses. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc. WIKI 2 is an independent company and has no affiliation with Wikimedia Foundation.
Contact WIKI 2
Introduction
Terms of Service
Privacy Policy