Is it possible to, with any accuracy, physically locate a computer given a network of computers whose physical location is already known? The idea is that the target machine is pinged by a network of machines the physical location you already know, and based on ping times, you triangulate the target machine. Of course the trouble is that ping times vary depending on several factors, and distance is not guaranteed to even be the most affecting one. I guess it's a question for math-capable people; is it possible to achieve decent accuracy, and how large a known network would be required for that? I know that the bittorrent client Azureus runs a vivaldi graph that's supposed to operate in a similar manner, only it's completely arbitrary with no known points so the 'map' constantly changes in shape.