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# Title: Leibniz-Handschriften zur Technica LH 38
# Folio 353v, page id 00068537:0708
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Molendinum Venta neum verticale
cento A.  cujus centrum A. radius aliquis AB horizonti
paralletus. cujus ala CDEF est autem CDE in alio plano
quod planum Motendini GAB secat in recta CF, et ad angulum
accid farit et plarum horijontis HFBL facit.
Est aute angulus CBF vel CBL padurum Y id est circiter
AG, itaque dimidia tantum venti vis conservatur
qua videbitur impingere in CBd. perpendiculari MB
 posita erge
aguli
fiet angulus MBL aequ 90- y.
Rursus posita BN parallela GA, seu perpendiculari ad horijon-
tatem LB. erit angulus MBN aqu fegt
90, =, 90- y. seu 90-90 4y.
Est ergo angulus CBL seu CBA aqualis angulo MB,
quod et patet  ex figum nam angulus bes
et BMB Merae sui complet quadranter LBM
complet quadrantet CBM cum angulo CBL. et
idem angulus LBM complet quadrantem cum angulo LBA
cum angulo MBN H sunt ergs. CBL et MLBN
aequales (Angulus autem NBd ut obiter dicam aequatur
angule LBM ut patet e ex dictis patet)
Dono vis, in BM ingruens ad alam AB, perfecte
quidem conservaretur si si MB et NB coinciderent
seu si plone sursum ascenderet perpendculanter ad horirontem
sed cum sit obliqua pro rrationes anguli MBN eatems
iserum vis illa per diminuetur
vim inalam cd.
patet autem que emodum vissem jore proportione congroale
quo angulus CB est major eo conniore an Et
toim eridem minore majore pproportione conservari;
residuam in alaro AB.
quo angulus BB MBNid est idem ille CBL est minor hinc
cum simul etet angeamus et minuamus vim angulo
aucto vel minuto, optimum pater fore, ut recimpontur auplu
prpilis medium sumatur, ad est angulus 45 gravium.. Itt
Nem ponamus alium esse langulum quemcunque enim
quarta virium pars perfecte aad motendinum circum
rotendum agendum proficit
ponamus alium ponamus BL esse alium angulum p9t
venti integra visisent quadratum ipsius PZ, quod s est
eR + RP, seu 3+X, erit vis conservatu V perdita planum horoce
ad y et suit anter vis conerval residua 
a
e
x
jam vis residua rursus agit in AB. anguloMBN Mtaqe dam
u est eodem angulo p9R sed ita ut si ante vis conservatu
suit   ad perditar ut ZR ad RB2, jam part
1.
apsius residuat conservanda erit contra t ad perdendam ut
s
 t iseu si raximam cum sunt aequales