Abstract
IN connexion with some work on gravitation, I felt the need of a spiral spring of greater delicacy than is ordinarily met with in the laboratory. With the help of my assistant, Mr. A. Glodenis, I have succeeded in making satisfactory springs of quartz. Our very first effort with an improvised apparatus resulted in a spring of four turns of about two centimetres diameter, possessing excellent elastic properties. Three one-hundredths of a gram gave an extension of one centimetre—this was indeed a short and powerful spring in comparison with those we succeeded in making later.
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LIUPAS, K. Spiral Springs of Quartz. Nature 115, 943–944 (1925). https://doi.org/10.1038/115943a0
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DOI: https://doi.org/10.1038/115943a0
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