📍 How do GPS systems work?

GPS is like a magic map in the sky! 🌍✨ Tiny satellites (like stars) fly around the Earth and send signals to your phone or car. When your device gets signals from at least 3 satellites, it can tell exactly where you are! 🚗📱

It helps parents find the way to the zoo or the ice cream shop! 🍦🦁

GPS (Global Positioning System) works using satellites 🛰️ that orbit Earth. These satellites send radio signals to your phone or car GPS. Your device calculates its position by measuring how long it takes for signals from at least 4 satellites to arrive. 📡

Here’s how it works:

• Satellites send signals with their location and time.
• Your device compares the time differences to figure out distance.
• Then, it shows your exact spot on a map! 🗺️

GPS relies on a network of 24+ satellites orbiting Earth at 20,000 km! 🛰️ Each satellite has an atomic clock ⏱️ and broadcasts its position and exact time. Your device (like a phone) receives these signals and uses trilateration to pinpoint your location.

Key steps:

1. Signal reception: Your device detects signals from multiple satellites.
2. Time difference: It calculates how long each signal took to arrive.
3. Distance calculation: Speed of light × time delay = distance.
4. Position fix: Intersecting distances from 4+ satellites give your 3D location (latitude, longitude, altitude).

Fun fact: GPS accuracy improves with more satellites and clear sky views! 🌤️