Monantheuil, Henri de, Aristotelis Mechanica, 1599

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1nitarum Remi eſſent æquales prop. 33. & 34. lib. I. elem. Eucl. quod
eſt contra omnium ſententiam, nauigatio eſſet valde impedita, eo
quod cum aqua ante nauim immota, ideoque difficilius cedens: tum
poſt nauim etiam immota, minimeque eo rediens non compelleret.
Moueretur enim aqua ſecundum rectam E F remorum extremita­
tes excipientem.
Poſterior igitur eſt ſi deſinant ſecundum lineam pa­
rallelam ſpondæ nauis quæ ſemper eſt periferikoeidh\s. Sic enim
Galenus digitorum corpus valde ſphæricum omnium à manu apprehen­
dendorum
difficillimum, apprehendentium extremitates vult de ſinere in
eandem circuli ipſum ſecantis peripheriam.
Quomodo ſi pro E F recta
conſtituamus pe­
32[Figure 32]
riphericam Q L N
P R ad quam de­
ſinant
prædicti re­
mi, non ſolum re­
morum erit inæ­
qualitas, & me­
dius erit maxi­
mus, vt in manu
digitus medius:
ſed & nauigatio
facilius procedet
propter contrarias
cauſas, quippè ve­
luti circulationes
vndarum circa na­
uim fient, vnde
quæ ante eſt pro­
pulſa aqua viam
aperiet nauigio,
& retro compreſſa, comprimenſ que nauigium propellet.
Quod autem
M H N medius remus ſit longior remis O I P & K G L fa­
cile demonſtratur ducta recta G I parallela ipſi K. O.
Sic enim
æquales ſunt G K, S M, I O prop. 33. & 34. lib. 1. æquales item
propter paralleliſmum G L, H N, & I P.
totæ igitur ex his
æquales axiom. 2. lib. 1. & ad earum vnam nempe ex S M, H N

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