How Does GPS Know Where You Are?

Your phone can find your location almost anywhere on Earth — but how does GPS actually know where you are? In this episode of Wonder Works, we explore the invisible technology behind that little blue dot on your screen. Discover how GPS satellites, radio signals, incredibly precise atomic clocks and mathematics work together to calculate your position — and why Einstein's theory of relativity is part of the reason GPS works accurately. You'll discover: 📍 Why GPS satellites aren't actually watching you 🛰️ How satellites send information to your phone ⏱️ How GPS turns time into distance 🌍 How multiple satellites determine one location 🕓 Why GPS normally needs at least four satellites 🧠 Why Einstein's relativity matters to GPS GPS is an extraordinary invisible system operating above us every day — even when all we're doing is following a tiny blue dot across a screen. Invisible Technology — Wonder Works Technology surrounds us, doing incredible things we rarely stop to think about. Wonder Works explores the hidden systems behind everyday life through simple explanations, beautiful visuals and extraordinary engineering. ▶️ Previous episode: How Does Wi-Fi Actually Work?    • Видео   🔜 Next: How Does Bluetooth Work? Subscribe to Wonder Works for more explorations of the invisible world around you. #GPS #HowGPSWorks #WonderWorks #Technology #Science 00:00 The Blue Dot 01:13 Satellites Aren't Watching You 02:25 Measuring Distance With Time 03:49 Finding One Point on Earth 05:31 Why Four Satellites? 07:05 When Einstein Meets GPS 08:55 The Invisible System Above You