The lying dashboard - Physics Stop
Marcus Wilson • Aug 07, 2019 •
How accurate are our car speedometers? That’s well discussed., e.g. on this AA question forum. If the ‘expert’ here is correct, your car speedometer could over-read by as much as 10% + 4 km/h (which is quite a bit – if you are doing 45 km/h it might read 54.5 km/h, or if you are doing 90 km/h it … Read More