4:24pm, Wednesday 9 June 2004
This afternoon, a colleague and I borrowed a GPS receiver (thanks, Jon) and checked our car speedometers.
Indicated speed | GPS speed (car 1) | GPS speed (car 2) |
---|---|---|
30 | 29 | 28.3 |
60 | 57 | |
70 | 68.3 | 67 |
80 | 78 | 77.2 |
90 | 88.8 | 87.1 |
100 | 97 |