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Description: | Apparatus for producing two independent perpendicular mechanical vibrations; consists of 2 slender brass strips soldered together lengthways, on tripod base mounted on a stand. The ratio of frequencies of the two vibrations is adjusted by dropping the lower strip into the central column and re-clamping it. An indicator 'blob' on the top shows Lissajous figures when the ratios are simple whole numbers. | License: | http://www.abdn.ac.uk/historic/Copyright_terms_conditions.shtml | Publisher: | ABDNP University of Aberdeen, Natural Philosophy Collection of Historical Scientific Instruments | Rights holder: | 47718 | Temporal: | 1870-1880 | Source: | University of Aberdeen | Creator: | 'W. Ladd & Co. 11 & 12 Beak St. Regent St. W.' ivory label | Identifier: | http://calms.abdn.ac.uk/Geology/dserve.e... | Go to resource |
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