opengps
Fix a position from satellite distances, and see why relativity matters, in three sessions.
- Session 1: Two circles meet at two points, three at one (Level 1, 60 min)
- Session 2: Distance is speed of light times time (Level 2, 75 min)
- Session 3: Solve for position and clock together, and check the geometry (Level 3, 90 min)