In this article about new scientific developments to redefine the kilogram and remove its link to a physical object, Ronnie Cohen writes about recent reports about a new scientific breakthrough in getting the most accurate estimate of Avogadro’s constant to date, which can help to redefine the kilogram. These reports have been published in the last few weeks and you can find a list of sources at the bottom of this article.
Category: Science
Changing standards and definitions, including several best forgotten
After the controversy of recent weeks with bashed bridges, furlongs and novel signs, we turn to something deadly dull – the definitions of length, mass (or weight) and capacity (or volume) and their relationships.
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1963 and “white heat” in Scarborough
Fifty years ago, the Government made a low-key announcement of a change in policy in relation to the use of metric units by industry. We consider how a speech by the Leader of the Opposition two years earlier had signalled the possibility of progress in this area.
Celsiheit is back – but help is at hand
Just when we thought we had seen the last of Fahrenheit temperatures, a tabloid headline warns us against complacency and reminds us of those awkward conversions. Awkward no more, we are pleased to say, as Metric Views has learnt of a simple formula.
A skirmish across the Pond
Readers may be interested in a recent exchange of views between Clay Rogers, a journalist with a newspaper in Iowa, and Paul Trusten, Vice President of UKMA’s sister organisation in the USA.
Whitworth’s forgotten legacy
Whitworth is famous for the eponymous screw thread, and for his promotion of standard measures and interchangeability that brought about an engineering revolution. Less well known are his enthusiasm for decimal measurement and his opposition to the introduction of the metric system in Britain.
Has SI delivered?
The fuss about measurement units at the start of this century has overshadowed progress thirty years earlier in education, science and engineering. We look at the benefits that were predicted at the start of the transition to SI and ask if they have been delivered.
Maybe they were moonlighting …
In contrast to his last article, John Frewen-Lord takes a look this week at some of the activities of seven famous people who later had SI units of measurement named after them.
Will Scotland keep the pound avoirdupois as well as the pound sterling?
What impact would Scottish independence (if it were to happen) have on weights and measures? Martin Vlietstra supplies an answer.
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One hundred years of metric rainfall measurement
– not that the media have noticed. John Frewen-Lord looks into this oversight, drawing our attention to a centenary that occurs on 1 May.
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