Download Thing Knowledge: A Philosophy of Scientific Instruments by Davis Baird PDF

By Davis Baird

Western philosophers have regularly focused on thought because the capability for expressing wisdom a couple of number of phenomena. This soaking up ebook demanding situations this basic concept by way of displaying how gadgets themselves, in particular medical tools, can show wisdom. As he considers quite a few fascinating examples, Davis Baird offers us the instruments to ''read'' the fabric items of technology and know-how and to appreciate their position in tradition. creating a provocative and unique problem to our perception of data itself, factor wisdom calls for that we take a brand new examine theories of technology and know-how, wisdom, development, and alter. Baird considers quite a lot of tools, together with Faraday's first electrical motor, eighteenth-century mechanical types of the sun process, the cyclotron, numerous tools constructed by means of analytical chemists among 1930 and 1960, spectrometers, and extra. Illustrations: 23 b/w photos, 24 line illustrations, 2 tables

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Extra info for Thing Knowledge: A Philosophy of Scientific Instruments

Sample text

Here, the orrery is a model in the sense of the semantic view of theories. One important use of models—material or conceptual—is demonstration, the second part of Hughes's DDI account. Thus, James Ferguson used an orrery to demonstrate—in this case to draw—the shape of the moon's orbit relative to the sun. John Smeaton used his model waterwheel to determine the relative efficiency of overshot as opposed to undershot waterwheels. Watson and Crick used their model of DNA to explain genetic reproduction.

6. Tinkering: With almost every component, various physical parameters were fiddled with in order to improve the performance of the instrument as a whole. This is perhaps best illustrated by the "cut and try" shimming of the magnetic field. 7. Adapting devices from other instruments: Livingston adapted an ion source for the cyclotron from direct voltage accelerators. The early radiofrequency power oscillators were adapted and improved by amateur radio techniques. 8. Knowing when an apparatus is working: Two checks were important.

8 Cyclotron weak magnetic focusing (from D. Baird and Faust 1990). Reprinted by permission of the British Society for the Philosophy of Science. and Wilson separately argued that magnetic focusing was most important (Rose 1938; Wilson 1938). In the meantime, better empirical techniques were developed to set up the best magnetic field. Better probes for finding and measuring the beam's width became available. Common rules of thumb evolved, such as: "Those cyclotrons which have achieved high efficiency in acceleration of ions and a high-intensity beam show a consistent shape of magnetic field.

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