Newton's rings
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Article
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1883
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Elsevier Science
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English
⚖ 57 KB
Newton's Rings.--Sohncke and Wangerin have repeated and extended their observations upon Newton's rings, with results which confirm their early views with regard to the slight eccentricity of the rings. If the microscope is so placed as to give the sharpest possible definition to any portion of a da