Marci of Kronland, Johannes Marcus
,
De proportione motus, seu regula sphygmica ad celeritatem et tarditatem pulsuum
,
1639
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tione illorum motuum. </
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<
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">Deinde eſto demus impulſum
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lateraliter abducentem eſſe circularem, non tamen ſe
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quitur motum compoſitum eſſe circularem: nam mo
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tus quidem compoſitus ex motu recto
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ap
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& circulari
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a
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q
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non in
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h,
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ut ſupponebatur, verùm in
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y
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abducit mobile,
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propterea quòd interuallum motus circularis in fine
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motus compoſiti ſit æquale arcui
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<
expan
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aq.
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ſimiliter dum ex
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y
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per lineam fertur
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yz
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æqualem lineæ
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ap,
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impulſu cir
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culari ſpatium tranſmittit
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zt
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æquale ſpatio
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py
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ſeu arcui
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qs:
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dico puncta
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ayt
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eſſe in lineà rectà, ac proinde mo
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tum compoſitum
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ayt
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rectum non verò circularem.
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Ducantur enim diametri
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ay. y t:
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quia ergo an
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gulus
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zyt
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angulo
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pay,
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hic autem angulo alterno
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ayq
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eſt æqualis, erit eidem angulus
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zyt
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ad verticem æqua
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lis, ac proinde linea
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ayt
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recta. </
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<
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">Ratio autem quamob
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rem impulſus non niſi per lineam rectam moueat, eſt
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hæc: quia cùm motus ſit via ad conjunctionem ſeu uni
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onem cum ſuo termino, ad quem mouetur, erit non ſui
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ſed finis gratia, ac proînde ſicuti nihil deficere, ita nihil
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abundare debet: at verò ſicuti in vià rectà nihil de eſt ad
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finem conſequendum, ita omnes reliquæ abundant: a
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bundare enim dicitur,
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; quo finis poteſt obtineri.
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Deinde cùm impulſus ſit agens neceſſarium, habebit &
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actionem & modum agendi determinatum; determi
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natio autem non niſi in lineà rectâ eſſe poteſt, cùm hæc </
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