On Tuesday 14 July 2009 20:47:55 Pat Naughtin wrote: > I wonder if we will ever be ready to embrace the idea of using the SI > unit, metres per second, for speed in everyday conversations. > > Let's take the example given above with sensible rounding. The speed > limit on a highway might then become 25 metres per second.
Travel times of road trips are normally measured in hours, not seconds. However, conversion between km/h and m/s would be easier if the speed limits were multiples of 9 km/h instead of 5. Speedometers, though, aren't marked in nines. Pierre
