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# Title: [Johannis Wallis S. T. D. Geometriae Professoris Saviliani, in Celeberrima Academia Oxoniensi; Opera Mathematica] Johannis Wallis S. T. D. Geometriæ Professoris Saviliani, in Celeberrima Academia Oxoniensi; Opera Mathematica (shelfmarks Leibn. Marg. 100:1/2, Stück 1; Leibn. Marg. 100:1/2)
# Folio 1001, page id 851387705:1021
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PTOP. VHIT. Retarcaio, etoorum.
1002
Fodem modo de aliis Nocuum Compolicionibus judicandum erit (mutatis mu-
candis) Curra Sic potira uc Calculus indicaverit.
PRO P. VIII.
Mocus Projectorum (exclula consideratione resistentis Medii) est in
curra Parabolica.
Intellipe; Nisi hac Projectio illa rel directe Sursum, vel directe De-
ortum: Duo casu motus erit in linea Recta; Surlum, Retardatus;
Deorlum, AcceleratuS.
FguituT Ex praecedente. Elto enim Vis a Projectore imprectâ, secundum dire.
Octionem ATT; Mobile impellens Nocu, siquabili, adeoque eadem ubique F15. 297.
CcleritatO: PET DTOP. TF. Cap. I. Incerea dum Graritas motum imprimie deor-
sum, puta sccundum directionem AD D, aequaliver acceleratum: Der PrOP. 3. hu-
jus. Adeoque, qui ex utiisque componii ell per AD D Curram Parabolicam:
DET praeccdentem.
Sin Tieri incellicatur projectio directe sursum, vel directe deortum: des enera-
bic Parabola in lineam Rectam; (propter projectionis morum, et motum gravi.
racionis, in eadem recta;) in qua tiet motus vel Recardatus Turlum, vel Aecolera
tusdeortum; de quibus supra dictum ett.
SC10 F FB M
icirit eit le
DeBECLA 23 ie C3CEIV
s C BEcSEM
DC LOCClanE mOtuS projeclorum ex Bombareis, arcubus, Balictis, aliiqué Ma-
L  chinis projicientibus, aut ex projicientis manu, altave Vi qualibet, libi pro-
seela CTraria, polequam a projicience separantur, impresso Impetu feruncur.
Dico aurem, eactuisa consideratione resistentis medii: Juoniam, ob hanc ref.
Stentiam, Motus secundum directionem projicientis, qui supponicur Aquabilis
revera minuitur, ex sensim exringnitur ob continnam cum medis relultenve luctam:
e proxterea sentim deticit a linea Parabolicd.
Acque hinc Cuc, quod Globuliex Bombarais, in majori distancia minus Feriune.
Si enim, revera, caciem celeritate procederet lacio secundum rectam N F, (quie
quid sic de motu descensus, secundum AD,) cadem riolentia teriret objectum Nu
rum (cui AT recta (It) sire lonsius, sire in propinquo politum: (DeT PTOP. 2 L.
Cap. F. ) concra quam experienria compercum elt.
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