Particula:, per quas vicium diferimina conflent;
Hxc diverfa queat quoniam textura creare ,
Proin illas varie fpatia ut trajcdla meantes
1630
Qiuelibet afficiant; diverse fola refringi
Jam neque mobilitas faciat, fed & amplius ipfa
Luccntum natura ita diltans particularum.
Ha: fi funt aliis compa&K partibus infra
Perquam pauxillis, non xquo mutui, nexu
1635,
Undique conjunclis ; dum motum alicunde receptant,
Haud illum excipient aequalem, difaue tributum
/Eque per partes omnes, elementaque cundta,
Sed magis hinc, illinc minus, ut varius fit ubique.
Particula idcirco debebit mota viciflim
1640
Expandiquc, in feque trahi, & disjungere paulum
Inter fefe elementa fua, & conjungere porro,
Atque ita vibrari: geminifque reciprocus ille
Limitibus motus finitur, lentus in ipfis,
Particulaque aliquo formamproin tempore fervans. 1645
Particula idcirco geminis his apta figuris
Extremis, nunc huic , nunc illi Icilicet, uno
V it r i
t c r a , q u x tra n fm ilT io n i re g u la -
ri , r e liq u x , m u lc o
m in o r i n u
m e r o
*
d ifp c r g e n t u r . P rio re s il-
I x fi a d v e n ir e n t o m u e s
in ip fa
m e d ia d ifp o fu io n c , v e l o m n in o
r e f l c & c r e n t u r , v e l o m n in o tra n s
m itt e r e n t u r :
v e r u m
si p a r u m
a d m o d u m ab ca m e d ia diftenc ,
n a r u m a d m o d u m d iv e r f a m h a b e
b u n t v im : facile a u t e m d e m o n -
f t r a c u r , u t in fc q u e n ti lib ro p a
t e b i t , p e rq u a m e x i g u u m d ife ri
m e n in v i p o lle id efficere , uc
p a rtic u la p o tiu s r e f k & a t u r , quan^
tr a n fm itta tu r , lice t in fine t o
tius fp atii a d tio n u m in aequalium
fu m m a o m n iu m
c f f e & u u m n i
h il
ad
fe n fu m
d iv e r f a
fit .
In d e a u te m • ra tio re d d itu r , c u c
n o n
fin t vices
a b fo lu u
refle-*
x i o n i s ,
te abfoluu
tra n fm iflu s ,
fed
fa cilio r is
, a d e o q u e jam m a
jo r c o p ia rc flcd laru r , jam m in o r ,
p r o
a iy e r fo
d ifc r im in c
in t e r
L I B E R N O N U S .
a<?5
fu m m a v iriu m erit a lia in aliis
etiam in e o d em illo in te rv a llo ,
adeoque ip f x d ifp e rg e n tu r i rre
gu la riter . IcJ q u id e m eft m a n i-
fe ftu m in re flex io n e , in q u a vis
in reditu p a r tic u lx a lu p e rn e ie re-
fle & c iu c d iv e rfa a v i in a d v e n tu
ad ipfam efficiet, u t n o n recu pere
tur illa p e rp en d icu la ris v e l o c it a s ,
q u x fu e ra t a m ifla , a d e o q u e a n -
?
;ulus reflexion is n on fit jam x q u a -
is a n g u lo i n c i d e n t i x : p ro radiis
tranfm iffis patet itidem , p a rti
culas e ju fm o d i acquifituras v e lo
cita tem p e rp e n d ic u la re m alias a-
liam , a d e o q u e tn an en te in o m n i
bus ead em v elo cita te parallela ,
p a r it e r 'p r o d it u r a s
alias in aliis
a n g u l i s .
H a b e b u n tu r ig itu r in m a x im a
parte p a rtic u la ru m a d v e n ie n tiu m
o in x d ifpofition cs contrariae, q u a
rum altera p o te rit h a b e re fe cu m
v i m , q u x fa v e a t r e f l e x io n i, ah*
