Category Archives: Technical

Major shake-up of the SI

One of our regular contributors, Ronnie Cohen, has followed up on Martin Vlietstra’s article about the “new kilogram”, with a summary of the forthcoming changes to SI. It proved difficult to create some of the symbols used by SI in the text … Continue reading

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The kilogram weight

The redefinition of the kilogram takes effect in two weeks time. To mark the event, Martin Vlietstra, one of our frequent contributors, looks at the “old” and “new” versions of this international standard. Likes(12)Dislikes(2)

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How British metallurgists helped to make the first international kilogram

We reported a few weeks ago on the redefinition of the kilogram. In this article, Martin Vlietstra, one of our regular contributors, outlines Britain’s contribution to the creation of the prototype kilogram upon which the definition had relied since 1889. … Continue reading

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Vehicle fuel consumption – another muddle

We look at vehicle fuel and energy consumption, and put some questions to owners of hybrid cars. Likes(24)Dislikes(7)

Posted in Consumer affairs, General, Technical, Transport | Tagged , , , , | 15 Comments

Isolationist or Imperialist?

On the eve of a showdown Cabinet meeting on Brexit, one of our frequent contributors, Ronnie Cohen, asks if British attitudes both to the EU and to this country’s metric changeover are part of the same mindset. Likes(30)Dislikes(0)

Posted in Consumer affairs, General, History, Technical, Views from abroad | Tagged , , , , , | 9 Comments

Metric Underground

We note the latest contract for the renewal of London Transport’s Underground fleet. Likes(22)Dislikes(2)

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Metric vs Imperial. Which?

We comment on a letter and the reply recently published in Which?, the magazine of the Consumers Association. Likes(54)Dislikes(4)

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Deficits, the global measurement system and global trade

In this article, Ronnie Cohen looks at the deficits of some major economies and asks if  apparent reluctance to use the global measurement system is a symptom of a wider problem – adapting to a changed world. Likes(49)Dislikes(5)

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A wrong turning that led British Leyland to a dead end

We reprint an article that was first published ten years ago and illustrates the risks of using a mix of metric and Imperial measures. Likes(47)Dislikes(34)

Posted in History, Technical, Transport | Tagged , , , , | 10 Comments

Acres made easy

We look ahead to the 400th anniversary of an innovation that simplified the measurement of land area, initially in England and later in the UK, by introducing decimals. Likes(50)Dislikes(44)

Posted in General, History, Technical | Tagged , , , , | 11 Comments