NASA World Wind program
If your computer is equipped with this new program then you can explore the world virtually. No wonder it is one of the most frequently downloaded program from the internet. It is an open source program; hence, you don't have to pay anything to use it. You can view any place on Earth with the help of this software. You will be able to see 3D pictures of cities by population. NASA World Wind also allows you to get a closer view of some famous monuments and buildings such as Empire state building of United States.
This program is extremely popular on the web and many have downloaded it without paying a penny. The program contains millions of satellite images of various interesting events such as volcanoes and wildfires. These images are taken by number of landsat satellites during thirty years of observation.
You can take a virtual tour using this software, around the planet by simply installing NASA World Wind on your desktop computer or laptop. You can literally visit any place on the planet. You can go over the beautiful Himalayan ranges, through the Grand Canyon or inside the Yosemite Valley.
The program can be easily operated using the mouse and the keyword. A huge number of internet users downloaded this software in the 1st week itself. The information delivered by NASA World Wind is accurate and reliable. Internet users from more than hundred countries have acquired this free software via the internet and have found NASA World Wind extremely useful.
World wind program can not only access NASA data but also aerial photographs of USGS (United States Geological survey). Get the experience of Earth terrain in 3D and you will feel as if you are standing on that location. Look across the African Sahara dessert, over the Alps, into Grand Canyon whenever you want at your own pace.
Apart from Earth, other planets that can be viewed in NASA World Wind are Mars, Jupiter, Venus and Moon and imagery of stars. These worlds are now available in File menu. You can interact with planet earth or any other planet by tilting the view, zooming in and rotating the view. Nearly 5 million political boundaries, longitude/latitude lines, placenames and any other location criteria’s can also be displayed. NASA World Wind allows users to browse geospatial data and maps on the internet with the help of OGC's WMS servers. It also enables users to import kml/kmz files and ESRI shape files.
Other features of NASA World Wind are support for .X models and visual effects like sun shading and atmospheric scattering. All movies and images that are created with NASA World Wind using Landsat, Blue Marble can freely be re-distributed, modified, and used on various websites for commercial purposes. Many people who are using this application have added their own data. The added data is then made available through other sources such as World Wind central.
If you want, you can also expand NASA World Wind by using add-ons. Add-ons are nothing but small extensions that provide new functionality or enhance the feature of NASA World.
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