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Pyrotechnia, or, A discovrse of artificiall fire-works : in which the true grounds of that art are plainly and perspicuously laid downe : together with sundry such motions, both straight and circular, performed by the helpe of fire, as are not to be found in any other discourse of this kind, extant in any language : whereunto is annexed a short treatise of geometrie, contayning certaine definitions and problemes for the mensuration of superficies and sollids, with tables for the square root to 25000, and the cubick root to 10000 latus, wherein all roots under those numbers are extracted onely by ocular inspection (1635)

Babington, John, Droeshout, John, -1652 · London : Printed by Thomas Harper, for Ralph Mab · leaf 131

An illustration from Pyrotechnia, or, A discovrse of artificiall fire-works : in which the true grounds of that art are plainly and perspicuously laid downe : together with sundry such motions, both straight and circular, performed by the helpe of fire, as are not to be found in any other discourse of this kind, extant in any language : whereunto is annexed a short treatise of geometrie, contayning certaine definitions and problemes for the mensuration of superficies and sollids, with tables for the square root to 25000, and the cubick root to 10000 latus, wherein all roots under those numbers are extracted onely by ocular inspection, 1635, leaf 131
qJ Ifreatife of (jeometry , Prob. $i. To divide a Circle by a triangle . … j OC, which I fee off, in the fide Of the fquare K from Hto I, which is found to be contained therein five times. J r To perform the Rule of three , or the rule of Proportion, 'He Rule of three is, of three numbers or three ftraight lines given, to find afourth in proportion, that is fuch ajine or…

Fireworks · Geometry

Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.

More pictures from Pyrotechnia, or, A discovrse of artificiall fire-works : in which the true grounds of that art are plainly and perspicuously laid downe : together with sundry such motions, both straight and circular, performed by the helpe of fire, as are not to be found in any other discourse of this kind, extant in any language : whereunto is annexed a short treatise of geometrie, contayning certaine definitions and problemes for the mensuration of superficies and sollids, with tables for the square root to 25000, and the cubick root to 10000 latus, wherein all roots under those numbers are extracted onely by ocular inspection

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