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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 117

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 117
f <L/f cTreatiJe of (geometry. 19 Prob. $b. To reduce a Triangle into a Geometricall Square* … Example. In the triangle A BG the perpendicular is BD, whofe halfe I Set off from C towards E, then taking the midft of that line I fet one foot of the compaffe, and extend the other towards A , describing the arch AFE , then railing the perpendicular from the point C, Iobferucwhereit inter- feds…

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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