Monantheuil, Henri de - Aristotelis Mechanica

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e)p' a)/krou
de\ kai\ ou)k e)n me/sw| kei=tai, o(/ti r(a=|ston to\ kinou/menon kinh=sai
a)p' a)/krou kinou=n: ta/xista ga\r fe/retai to\ prw=ton me/ros,
dia\ to\ w(/sper e)n toi=s ferome/nois e)pi\ te/lei lh/gein th\n fora/n,
ou(/tw kai\ tou= sunexou=s e)pi\ te/lous a)sqenesta/th e)sti\n h( fora/.
h( de\ a)sqenesta/th r(a|di/a e)kkrou/ein. dia/ te dh\ tau=ta e)n th=|
pru/mnh| to\ phda/lio/n e)sti, kai\ o(/ti e)ntau=qa mikra=s kinh/sews
genome/nhs pollw=| mei=zon to\ dia/sthma e)pi\ tw=| e)sxa/tw| gi/netai,
dia\ to\ th\n i)/shn gwni/an e)pi\ mei/zona kaqh=sqai. kai\ o(/sw|
a)\n mei/zous w)=sin ai( perie/xoustai.

In extremo autem, non
in medio poſitum eſt. quia
motor, id quod iam moue
tur, facillime ab extremo
commouet. Celerrime enim
fertur nauis prior pars,
Quoniam vt in ijs quæ mo
uentur, ad finem latio defi
cit: ſic ipſius continui in ex
tremo latio imbecillima
eſt. Eſt autem imbecillima
facilis repulſu. Propterea
gubernaculum in puppi ſi
tum eſt. Et quoniam exi
gua in ea motione facta,
multo maior in prora fit in
tercapedo. Angulus enim
æqualis à maiori ſubtendi
tur, & quanto maiores quæ
angulum comprehenderunt lineæ.

COMMENTARIVS.

In extremo autem.] Solutio eſt ſecundi problematis duplex,
ſic.

Ibi collocandum gubernaculum, vbi per ipſum motor facilius
& plus nauim mouere poteſt: & vbi ex minore puppis, mu
tatione, maior proræ mutatio adfertur.

Sed in puppi gubernaculo collocato gubernator facilius nauim
contorquet, & ex parua puppis mutatione magna proræ ad
fertur mutatio.

Ergo in puppi non in medio gubernaculum collocandum eſt.
Ob id etiamſi e piſcibus quidam parte anteriori homini & quadra
pedibus ſimiles ſunt, vt Triton, Nereis, elephas, & vitulus: poſteriore
tamen omnes in caudam bifidam deſinunt, paucis admodum exce
ptis, atque id non ob aliam cauſam quam quod, velut in nauis puppi
temo nauim dirigit: Ita piſcis iter cauda.

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