GPS: How pieces of metal in space know where you are
How does the Global Positioning System know where you are, even when you have no idea? Learn more about the navigation system and the satellites that do all the hard work. The GPS, first developed for the US military, is the most accurate navigation system available today.
GPS Satellites - our best friends on the sky
It’s circling the Earth 20 200 km above the ground, helping Google Maps tell you where to turn right and probably is really cold and lonely. What is it?
Geocaching: Another Kind of Treasure Hunt Activity
Geocaching can be described as a cross between hiking and hide-and-seek game. At least, if you have a little bit of imagination. In fact, it's nothing more (or less) than a walk, during which you try to find a hidden treasure knowing its GPS coordinates.