66:. Nobert maintained a diary of his studies and it included lessons in astronomy and the circle-dividing engine. Nobert was appointed to Universitatsmechaniker at Greifswald in 1835, and married the same year. One of his first works was in determining the resolution of a microscope. He began to develop methods to create fine ruling on glass. Nobert's ultra-fine micrometric standards created by Nobert began in 1840 with ten lines cut between a specific distance which then extended to 20 division in 1851 and thirty in 1855. These test gratings were sold along with microscopes or separately for about 5 Thalers in 1846. Nobert also made microscopes, although he made them alone and took as long as a year to deliver one. These had a micrometer stage holding the grating measurement slide and a mechanism for slow and controlled movement. After the death of his father, Nobert returned to Barth in 1846 and worked there until his death.
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Nobert was born in Barth on the Baltic coast, where his father Johann
Friedrich Nobert was a clockmaker. He was known as Fritz, and being the eldest son, he was expected to receive a technical education and continue as a clockmaker. A younger brother studied theology and became a pastor. He found his
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who wrote to Nobert and encouraged him to check its accuracy with astronomical measurements. This required a telescope and not able to purchase one, he began to construct one on his own. In 1829 he measure several star positions using a 2 foot quadrant and was able to tell that the accuracy of his
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chronometer was close to those made by
Breguet in Paris and Kessels in Altona. He then applied for a bursary to support his education and received 300 Thalers to join the Technical Institute in Berlin from October 1833 after which he would receive the post of technician at the
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schooling insufficient for the clockmaking work and tried to study arithmetic, geometry and trigonometry on his own. He made a watch that could measure seconds, and corrected for temperature and sent it for an exhibition in Berlin in 1827. This was examined by astronomer
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microscope designer who pioneered the use of diamond-ruled microscope slide gratings for accurate measurements. This extended further to diffraction gratings for use in spectrometers and the measurement of the solar spectrum by
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Nobert, F. A. (1882). "Die höchste
Leistung des heutigen Mikroskops, und seine Prüfung durch künstliche und natürliche Objekte Mittheilungen aus dem naturwissenschaftlichen Vereine von Neu-Vorpommern und Rügen in Greifswald".
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Nobert, F. A. (1854). "Description and purpose of the glass plate which bears the inscription "Interferenz-spectrum. Longitudo et celeritas undularum lucis relativa cum in aere tum in vitro".
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Nobert, F. A. (1852). "Ueber eine
Glasplatte mit Theilungen zur Bestimmung der Wellenlänge und relativen Geschwindigkeit des Lichts in der Luft und im Glase Ann. Phys. Chem".
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Ueber
Kreisleitung im Allcgemeinen und über einige, bei einer Kreistheilmaschine angewendete, Verfahren zur Erzielung einer grossen Vollkommenheit der Theilung derselben
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which was published in 1868 made use of gratings made by Nobert. The finest lines were found to be at a distance of 0.1128
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Nobert, F. A. (1852). "Ein
Ocularmikrometer mit leuchtenden farbigen Linien in dunklen Gesichtsfelde Ann. Phys. Chem".
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364:. Verhandlungen des Vereins zur Beförderung des Gewerbfleisses in Preussen. pp. 202–12.
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Turner, G. L. (1967). "The contributions to science of
Friedrich Adolph Nobert".
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Abstracts of the Papers
Communicated to the Royal Society of London
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Nobert's carte-de-visite, 1867 with his dividing machine
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Karsten, Gustav (1886). "Nobert, Friedrich Adolph".
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147:(in German). Vol. 23. pp. 750–751.
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