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Shape is as important as size: roundness and the science of measurement

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journal contribution
posted on 2014-09-18, 08:39 authored by Chris Sangwin
Science relies on standards for measurement. This article describes assessment of geometric shape, rather than size. We consider the problem of establishing departure from roundness. In doing this we examine some curious geometric shapes, including non-circular shapes of constantwidth and shapeswhich rotate smoothly inside triangles. This has led to the recent reassessment of the standard testing procedures using veeblocks.

History

School

  • Science

Department

  • Mathematics Education Centre

Published in

School Science Review

Citation

SANGWIN, C.J., 2014. Shape is as important as size: roundness and the science of measurement. School Science Review, 353, pp. 115-122.

Publisher

ASE © the author

Version

  • VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2014

Notes

This article was published in the journal, School Science Review [ASE © the author]. The website is at: http://www.ase.org.uk/journals/school-science-review/

ISSN

0036-6811

Language

  • en

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