Google Earth was originally called EarthViewer 3D before Google bought it in 2003. The main feature is that it maps the Earth by superimposing images from trusted sources such as satellite images, GIS 3D globe and aerial photography.
The main advantage of using Google Earth to Google Maps is that it has a rich visual representation. But the main drawback and a failure played was punctual factor.It has often found that the information representing the locations was not updated frequently. There are a few variables that determine the frequency with which Google Earth is updated. First, the local postman has a noble side, for example; New York is updated in high detail and using regular flying services at low altitude aircraft that provide good image resolution. Whereas it is a fact that some remote locations, such as the Irish and the chain roller coasters still have a low resolution. On applications for the world's governments, some sensitive military bases are blurred and not updated. Similarly, areas "no fly" and conflict zones are not updated as they are likely to be used for military intelligence or crimes.
In conclusion, on average, it was found that their images updated every 1-3 years. The regularity of updating images and how the image is cool depends on the size of the site is consistent with Google Earth.
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