## Know your speeds – the voice of experience

When one day the British roads are converted to metric units, drivers will need to get used to distances that are measured in kilometres and speeds that are measured in kilometres per hour (article contributed by Martin Vlietstra). Continue reading “Know your speeds – the voice of experience”

## Metric and Wilkins compared – not quite deja vu

A feature of the metric system, which distinguishes it from customary systems, is the use prefixes for decimal multiples and submultiples as well as the use of symbols for units. These were not part of Wilkins’ proposals of 1668. Roddy Urquhart compares these with the modern metric system (SI).

## BBC1 Six o’clock News launches a “stunner”

New research suggests that the principles of the metric system may have been outlined originally in England. The BBC launched this discovery on an unsuspecting British public during the Six o’clock  News on 13 July. Here is the  transcript of the broadcast (obtained by Robin Paice). Continue reading “BBC1 Six o’clock News launches a “stunner””

## Using metric – accuracy v precision

A fellow metric supporter who admits to being a little weak on mathematics owned up to not understanding the difference between accuracy and precision when it comes to measurement.

He is probably right in saying that he is not alone and that many people fail to see advantages with metric in this respect.

I offer here two examples in an attempt to clarify the issue, one purely numeric, the other practical involving an everyday example of measurement.