Measuring the Average FootChristmas Lectures with RV Jones

How can one estimate the average length of a foot? RV Jones shows a simple yet elegant demonstration.
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RV Jones gave the 1981 Christmas LecturesFrom Magna Carta to Microchipwhich explores what measurement is, the principles by which measurements can be made, and why their applications have been of so much importance in the advance of science and in the development of technology

In his first lecture, “Principles, Standards and Methods”, RV Jones looks at the evolution number systems and standards.

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