Stevin, Simon, Mathematicorum hypomnematum... : T. 4: De Statica : cum appendice et additamentis, 1605

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BREVIARIVM
SPARTOSTATICES.
NOviſsimis tribus 1 libri Staticæ propoſitionibus ex-
poſuimus affectiones ponderum de rectis duabus,
quæ duobus diverſis locis fixæ ſunt, dependentium:
ſed quia ponder a pluribus modis èrectis ſuſpendi poſsint, qua-
rum quantũ quæ{q́ue} ferat ſcire expetas, istud ad ſpecialem bunc
tractatum retulimus.
Cum autem linearum vicem funes ple-
rumque ſubeant, ab uſu vulg atiſsimo S*PARTO STATI CEN*
appellamus, qua appellatione intellig as doctrinam declar antem
quantum ponderis diverſorum funium, ex quibus idem cogni-
tum pondus dependet, quilibet ſufferat.
Totius autem argu-
menti ſumma hujuſmodi eſt.
Cum propoſitione 27 lib. 1 Staticæ
demonstratum ſit, columnâ contra duo obliqua pondera in
æquilibrio conſtitutâ, eſſe ut linea obliquata ad lineam rectam,
ſic pondus obliquè ducens ad pondus ducens rectà, hinc prima
istaparte varia deducemus conſectaria, quorum loco propoſi-
tiones formare licuit;
ſed partim brevitatis gratiâ, partim
quiaistinc manifeſtiſsime deducuntur, id negotii omiſſum eſt.

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