Incredible as it may sound, the blades of the modern wind turbines, because of their motion, are creating problems to radar systems. In fact, it looks like standard radars encounter some difficulty when it comes to telling the movement of a small general aviation aircraft flying at low altitude, from the spinning of the blades [...]

Apart from guiding us through cities that we do not know, or taking us to our destination avoiding traffic jams, GPS can do much more, especially if integrated with widely used platforms such as for example Google Earth. An example of this kind comes from CartoGoo, a GPS navigator designed for a professional usage. CartoGoo [...]