The ‘nec plus ultra’ of precision measurement: Geodesy and the forgotten purpose of the Metre Convention |
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| Institution: | 1. Department of Geosciences, Colorado State University, Fort Collins, CO 80523, United States;2. Department of Civil and Environmental Engineering, Colorado State University, Fort Collins, CO 80523, United States;3. Department of Chemistry, Colorado State University, Fort Collins, CO 80523, United States;1. Hunan Provincial Key Laboratory of Chemical Power Sources, Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China;2. Hunan Province Cooperative Innovation Center for the Construction & Development of Dongting Lake Ecological Economic Zone, College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Changde 415000, China |
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| Abstract: | Geodesy—the determination of the size and shape of the earth—has often been the science operating at the frontier of precision in the measurement of length. Its contribution to the technologies and standards of length measurement has, however, been underestimated in the literature. That, instead, places emphasis on the on the creation and international acceptance of the metric system as a whole. By new research into the standards-in-use of the community of geodesists, I rediscover the original purpose of the Metre Convention of 1875, and show for the first time the significant influence of geodesy on the standardisation of length measurement thereafter. I emphasise the role of the coherence of the web of measurement in the context of change and improvement in standards. |
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