Benedetti, Giovanni Battista de, Io. Baptistae Benedicti ... Diversarvm specvlationvm mathematicarum, et physicarum liber : quarum seriem sequens pagina indicabit ; [annotated and critiqued by Guidobaldo Del Monte]

List of thumbnails

< >
231
231 (219)
232
232 (220)
233
233 (221)
234
234 (222)
235
235 (223)
236
236 (224)
237
237 (225)
238
238 (226)
239
239 (227)
240
240 (228)
< >
page |< < (237) of 445 > >|
EPISTOLAE.
    <echo version="1.0">
      <text type="book" xml:lang="la">
        <div xml:id="echoid-div7" type="body" level="1" n="1">
          <div xml:id="echoid-div477" type="chapter" level="2" n="6">
            <div xml:id="echoid-div495" type="section" level="3" n="5">
              <div xml:id="echoid-div495" type="letter" level="4" n="1">
                <p>
                  <s xml:id="echoid-s2968" xml:space="preserve">
                    <pb o="237" rhead="EPISTOLAE." n="249" file="0249" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/163127KK/pageimg/0249"/>
                  trum epicycli conficit gra .36. min .13. ad rationem ſupradictam. </s>
                  <s xml:id="echoid-s2969" xml:space="preserve">Reſtat nunc no-
                    <lb/>
                  bis inuenire angulum
                    <var>.b.o.c.</var>
                  in centro
                    <reg norm="mundi" type="context">mũdi</reg>
                  inter duas lineas,
                    <var>b.o.</var>
                  et
                    <var>.c.o.</var>
                    <reg norm="quarum" type="context">quarũ</reg>
                  prior
                    <lb/>
                  eſt primæ ſtationis, altera eſt veri motus epicycli, quod facilè intelligemus per di-
                    <lb/>
                  ctam .49. lib. 1. Monteregij, cum duo latera
                    <var>.n.c.</var>
                  et
                    <var>.c.o.</var>
                  & angulus
                    <var>.n.c.o.</var>
                  ſint nobis no
                    <lb/>
                  ta. </s>
                  <s xml:id="echoid-s2970" xml:space="preserve">Hoc autem fiet fingendo lineam
                    <var>.n.h.</var>
                  perpendiculerem ad
                    <var>.o.c.</var>
                  quæ tanquam ſi-
                    <lb/>
                  nus anguli
                    <var>.n.c.h.</var>
                  erit partium .28986. talium qualium
                    <var>.n.c.</var>
                  eſſet partium .100000. &
                    <lb/>
                    <var>c.h.</var>
                  tanquam ſinus anguli
                    <var>.c.n.h.</var>
                  reſtantis ex vno recto, erit partium .95706. dicendo
                    <lb/>
                  poſtea ſi
                    <var>.n.e.</var>
                  tanquam ſinus totalis partium .100000. dat nobis
                    <var>.n.h.</var>
                  partium .28986
                    <lb/>
                  quid dabit nobis diameter
                    <var>.n.c.</var>
                  tanquam partium .39. mi .30. inueniemus
                    <var>.n.h.</var>
                  venire
                    <lb/>
                  nobis ex partibus 11. mi .27. & idem faciendo de
                    <var>.c.h.</var>
                  inueniemus quod veniet no-
                    <lb/>
                  bis partium .37. mi .48. quibus ſubtractis extota
                    <var>.c.o.</var>
                  quę eſt
                    <reg norm="partium" type="context">partiũ</reg>
                  .60. mi .18. reliqua
                    <lb/>
                  erit nobis
                    <var>.h.o.</var>
                  partium .22. min .30. capiendo poſtea radicem
                    <reg norm="quadratam" type="context">quadratã</reg>
                  ſummæ qua
                    <lb/>
                  drati
                    <var>.n.h.</var>
                  cum quadrato
                    <var>.h.o.</var>
                  veniet nobis
                    <var>.n.o.</var>
                  partium .25. min .12. talium qualis
                    <var>.n.
                      <lb/>
                    h.</var>
                  eſt partium .11. min .27. ſi igitur ad
                    <var>.o.n.</var>
                  tanquam partium .25. min .12. reſpondet
                    <var>.
                      <lb/>
                    n.h.</var>
                  partium .11. minuti .27. linea
                    <var>.n.h.</var>
                  ad
                    <var>.o.n.</var>
                  tanquam partium 100000. reſpon
                    <lb/>
                  debit part .45436. tanquam ſinus anguli
                    <var>.n.o.h.</var>
                  qui angulus erit gra .27. minut .1. ſub
                    <lb/>
                  tracto poſtea hoc angulo ab angulo
                    <var>.c.o.i.</var>
                  graduum .40. minut .55. remanebit an
                    <lb/>
                  gulus
                    <var>.n.o.i.</var>
                  graduum .13. minut .54. inter lineam contingentiæ, & lineam primæ
                    <lb/>
                  ſtationis in eiuſmodi ſitu. </s>
                  <s xml:id="echoid-s2971" xml:space="preserve">Et ideo Mars acceſſerit ad lineam
                    <var>.o.c.</var>
                  veri motus epi-
                    <lb/>
                  cycli. </s>
                  <s xml:id="echoid-s2972" xml:space="preserve">Sed quia linea
                    <var>.o.i.</var>
                  contingentiæ, propter motum centri epicycli, in dictis die-
                    <lb/>
                  bus .69. confecerit gradus .36. minut .13. ( præſuppoſita ſemper eadem di-
                    <lb/>
                  ſtantia
                    <var>.o.c.</var>
                  quamuis nonnulla ſit differentia, quam nunc prætermittemus ) & Mars in
                    <lb/>
                  dicto tempore retrogreſſus fuerit per dictum angulum gra .13. mi .54. quibus dedu-
                    <lb/>
                  ctis, ex .36. & min .13. reſtabunt gra .22. min .19. itaque in diebus .69. </s>
                  <s xml:id="echoid-s2973" xml:space="preserve">Mars promo-
                    <lb/>
                  tus fuerit a primo ſitu gra .22. min .19. aut circiter, prius quam retrogradatio eius in-
                    <lb/>
                  cipiat eſſe appa-
                    <lb/>
                  rens.</s>
                </p>
                <figure position="here">
                  <image file="0249-01" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/163127KK/figures/0249-01"/>
                </figure>
                <p>
                  <s xml:id="echoid-s2974" xml:space="preserve">Nunc à prima
                    <lb/>
                  ſtatione vſque ad
                    <lb/>
                    <reg norm="lineam" type="context">lineã</reg>
                  veri motus
                    <lb/>
                  epicycli ſunt gra
                    <num value="16">.
                      <lb/>
                    16.</num>
                  min .51. ipſius
                    <lb/>
                  epicycli, vt ſupra
                    <lb/>
                    <reg norm="vidimus" type="simple">vidimꝰ</reg>
                  quos Mars
                    <lb/>
                  tranſit in diebus
                    <lb/>
                  36. aut circiter ad
                    <lb/>
                  rationem min .28.
                    <lb/>
                  in ſingulos dies,
                    <lb/>
                  quo tempore cen
                    <lb/>
                  trum epicycli, in
                    <lb/>
                  tali diſtantia à
                    <reg norm="cen- tro" type="context">cẽ-
                      <lb/>
                    tro</reg>
                  mundi confice
                    <lb/>
                  ret gra .18. mi .54.
                    <lb/>
                  ad rationem min
                    <num value="31">.
                      <lb/>
                    31.</num>
                  cum dimidio
                    <lb/>
                  in ſingulos dies,
                    <lb/>
                    <reg norm="quibus" type="simple">quibꝰ</reg>
                  deductis ex
                    <lb/>
                  gra .27. min .1. an- </s>
                </p>
              </div>
            </div>
          </div>
        </div>
      </text>
    </echo>