Mathematical instrument
A mathematical instrument is a tool or device used in the study or practice of mathematics. In geometry, construction of various proofs was done using only a compass and straight edge; arguments in these proofs relied only on idealized properties of these instruments and literal construction was regarded as only an approximation. In applied mathematics, mathematical instruments were used for measuring angles and distances, in astronomy, navigation, surveying and in the measurement of time.[1] Instruments such as the astrolabe, the quadrant, and others were used to measure and accurately record the relative positions and movements of planets and other celestial objects. The sextant and other related instruments were essential for navigation at sea.
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Most instruments are used within the field of geometry, including the ruler, dividers, protractor, set square, compass, ellipsograph, T-square and opisometer. Others are used in arithmetic (for example the abacus, slide rule and calculator) or in algebra (the integraph). In astronomy, many have said the pyramids (along with Stonehenge) were actually instruments used for tracking the stars over long periods or for the annual planting seasons.
In schools
The Oxford Set of Mathematical Instruments is a set of instruments used by generations of school children in the United Kingdom and around the world in mathematics and geometry lessons. It includes two set squares, a 180° protractor, a 15 cm ruler, a metal compass, a 9 cm pencil, a pencil sharpener, an eraser and a 10mm stencil.
See also
- The Construction and Principal Uses of Mathematical Instruments
- Dividing engine
- Measuring instrument
- Planimeter
- Integraph
References
- ↑ Gerard L'Estrange Turner Scientific Instruments, 1500-1900: An Introduction ( University of California Press, 1998) ISBN 0520217284 page 8
External reading
- J. L. Heilbron (ed.), The Oxford Companion To the History of Modern Science (Oxford University Press, 2003) ISBN 0195112296, Instruments and Instrument Making, pp. 408–411
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