Cell phones use GPS (Global Positioning System) for navigation without a needle and compass. GPS satellites transmit signals to the phone, which calculates its location based on the time it takes for the signals to arrive. Additionally, cell phones use accelerometers, gyroscopes, and digital maps to enhance navigation accuracy.
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Cell phones achieve navigation without a needle and compass through the Global Positioning System (GPS), which involves a network of satellites orbiting Earth. GPS satellites send signals to the phone, which calculates its precise location by measuring the time taken for these signals to reach it. This system provides accurate positioning data. Additionally, cell phones incorporate accelerometers and gyroscopes to detect movement and orientation, further refining navigation accuracy. Coupled with digital maps and real-time data, cell phones offer comprehensive navigation capabilities, guiding users with turn-by-turn directions, traffic updates, and location-based services without the need for traditional compasses or needles.