Since the early days when GPS technology was an expensive and rare product, it has changed to penetrate the world at virtually every level. What not that long ago required a complex and costly product is now available as a virtually free add-on even in smartphones, to name but one product range. All based on a very simply concept: a GPS chip detecting where it is and relaying this information back to where it is needed through a process known as telemetry, see https://en.wikipedia.org/wiki/Telemetry. […]