BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Frédéric Brechenmacher (École Polytechnique in Paris) DTSTART:20261119T180000Z DTEND:20261119T190000Z DTSTAMP:20261109T050831Z UID:artmath2021/41 DESCRIPTION:Title: Knowing by drawing: geometric material models in 19th Century\nby Frédéric Brechenmacher (École Polytechnique in Paris) as part of Art a nd Math Seminar\n\n\nAbstract\nThis paper investigates several historical collections of geometric material models\, drawings\, photographs and othe r types of graphical representations. The practice of model drawing played a key role in the development of descriptive geometry and\, more generall y\, of mathematics from the mid 18th century to the beginning of the 20th century. For a long time\, material models were competitors of professors and model drawing an alternative to lectures. Historical sources such as d rawings (and later photographs and films)\, models (of all kinds\, includi ng relief drawings) and instruments\, highlight the key role played by spe cific forms of non-textual knowledge in mathematics. These collections rai se many questions concerning the role played by instruments in mathematics and its relation to other sciences\, techniques and industry\, but also t o the fine arts. To be sure several instruments originated from the practi ce of geometric model drawing. More importantly\, models and drawings them selves came to be considered as specific types of instruments by the end o f the 19th century : graphical instruments.\n LOCATION:https://researchseminars.org/talk/artmath2021/41/ END:VEVENT END:VCALENDAR