Technical – Metric Views

BIPM and OIML issued joint press release and Directors’ message to mark World Metrology Day

20 May 2023 was World Metrology Day, commemorating the anniversary of the signing of the Metre Convention in 1875. To mark the occasion, the International Bureau of Weights and Measures (BIPM) and the International Organization of Legal Metrology (OIML) issued a joint press release and Directors’ message.

Why count in tens rather than twelves?

Martin Vlietstra looks at our counting system and explains why we count in tens and not in twelves. Our counting system and the metric system are both decimal based (i.e. they use base 10). The entire metric system is based on tens and powers or ten, which fits in neatly with our counting system and makes calculations easy.

The metric system’s contribution to computing

One of the most notable contributions that the metric system has made to computing is the widespread use of metric prefixes for various computer specifications. Where would the computer industry be without the metric system? It is hard to imagine what it would have looked like without the metric system.

British contributions to the metric system

The development of the metric system was a truly international effort. The British have made substantial contributions to its development. The metric is in effect an English invention. Metrication was first proposed by an Englishman, the Reverend John Wilkins in 1668. British scientists have been at the forefront of developing the metric system, and many have given their names to metric units, including Newton, Faraday, Joule, Kelvin and Watt.

UKWF issues warning about risks of REUL Bill

Yesterday, the UK Weighing Federation (UKWF) issued a briefing on the regulation of the UK weighing industry and the Retained EU Law Bill. This briefing emphasised the key role of weights and measures in all areas of industry and consumers’ everyday lives and also explained the serious consequences of lowering or complete removal of current regulatory standards.

Retirement of the US survey foot

It is well known that the USA uses miles, feet and inches and they are identical to the English versions of these units used in the UK. What is a lot less well known is the fact that the USA had two official feet, the international foot and the survey foot. By extension, there were also two versions of derived units based on these two feet. So there were survey and international versions of common units such as the mile, yard and inch. The US survey foot was deprecated at the end of last year. This deprecation act shows the importance of ensuring uniformity and common standards in measurement matters.

First new SI prefixes for over 30 years

The International Bureau of Weights and Measures (BIPM) has formally approved the use of four new SI prefixes to meet the growing needs of science, computing and the increasing amount of online data and to prevent the adoption of unofficial prefix names. The approval of the new prefixes was one of the resolutions of the 27th General Conference on Weights and Measures, which took place on 15-18 November 2022.

Government Imperial Units consultation bedevilled by inaccuracy, bias, bodges and computer blunders

The Government consultation into the choice of units of measure in the retail sector [ref 1] has been bedevilled by inaccuracies, bias, bodges and probably computer blunders. The Foreword of the document (unsigned) is not only riddled with inaccuracies and half-truths, but the explanation of the law relating to units of measure in the retail trade bypasses the fundamental principles behind the display of prices.

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