Checked content

File:Vortex-street-1.jpg

Description
English: This Landsat 7 image of clouds off the Chilean coast near the Juan Fernandez Islands (also known as the Robinson Crusoe Islands) on September 15, 1999, shows a unique pattern called a " von Kármán vortex street." This pattern has long been studied in the laboratory, where the vortices are created by oil flowing past a cylindrical obstacle, making a string of vortices only several tens of centimeters long. Study of this classic "flow past a circular cylinder" has been very important in the understanding of laminar and turbulent fluid flow that controls a wide variety of phenomena, from the lift under an aircraft wing to Earth's weather.
Français : Une allée de tourbillon de Karman dans les nuages provoquée par la rencontre entre du vent et une île des Juan Fernandez. Image prise par le satellite Landsat 7. Ce type de tourbillon est courament étudié au laboratoire, mais dans ce ces, ils ne font que quelques centimètres de long.
Date 15 September 1999
Source http://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=3328 ( original JPEG)
Author Bob Cahalan, NASA GSFC
Permission
( Reusing this file)
Public domain This file is in the public domain because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
NASA logo.svg
Dialog-warning.svg
 Warnings:
  • Use of NASA logos, insignia and emblems are restricted per US law 14 CFR 1221.
  • The NASA website hosts a large number of images from the Soviet/ Russian space agency, and other non-American space agencies. These are not necessarily in the public domain.
  • Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI. See also {{ PD-Hubble}} and {{ Cc-Hubble}}.
  • The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use.
  • Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted.
POTY
Cscr-featured.svg

Wikimedia Commons
This is a featured picture on Wikimedia Commons ( Featured pictures) and is considered one of the finest images.

If you have an image of similar quality that can be published under a suitable copyright license, be sure to upload it, tag it, and nominate it.
The following pages on Schools Wikipedia link to this image (list may be incomplete):

More information

You can learn about nearly 6,000 different topics on Schools Wikipedia. SOS Children is there for the children in our care until they are ready for independence. Sponsoring a child is the coolest way to help.