Exchangeable Image File Format (EXIF) data can tell you which camera was used, what focal length, ISO, exposure time was set when taking a photo. Let's see how to look for that data in Windows 7.
So far we have only discovered about 5 to 7 percent of the ocean floor and only about a half percent of the whole ocean. Now imagine all the still undiscovered species lurking in depths.
Mars is the most explored and well know planet so far, so you shouldn't have to much trouble knowing some of its facts. Go through this short quiz and build up you Dreevoo knowledge profile.
