Haud igitur reftos res impedit ulla meatus
Immensum hinc etiam fpatiorum fumma vacantum 1860
Major eri: fpatiis in quovis corpore plenis.
Et quamvis vires poffit fentire valentes
Vicinis a particulis lux».atque trahatur,
Prreterit interea tamen, atque celerrima labent
Non pote pulfari tot ab idlibus > ut dcfic&at,
18
6$
Mobilitas minor at fi luci imprefia fu ifie t,
Huc torqueret & huc , dum trans adamanta mearet,
Aut vitrum , aut undas, ite r, uc vicinior cfiet
Aut huic particulx , aut i l l i , curfufque rccurfufquc
Inflexos ageret, labyrinthi ut texta p e r4alta.
1870
L I B E R D E C I M U S .
451
F
u n a fubftantia p er a liam m o tu
faltem ad fe n fum r c d ilin c o . Id
o b fe rv am u s in
lu m in e ,
q u o d
exem p lu m hic N o f t e r
a d h i b e t .
L u m e n libere p e rm e a t a q u a m ,
v i t r u m , a d a m a n t e m i p f u m :
te
quidem
dum
in tra
e ju fm o d i
fubftantias p ro g re d itu r ,
r e d o
m o tu fertur .
T r a n fit u s ille rc-
d ilin c u s cum d ir e d io n ib u s q u i.
b u fe um q u e o fte n d it , in im m e n
fum cfle m in o r e m
q u a n tita te m
m a te rix in iis c o rp o rib u s ., o u a m
fit v a cu u m e xh ib e n s ilium lib e
rum tranfitum . V e lo cita s in g e n s ,
q u am habent lum in is p a r t i c u l x ,
id p r x f t a t , u t
fu p erius d i d u m
e ft fuo loco
j
ea e ft t a n t a , u t
inaequalitas exigu a v iriu m , q u x
oritu r a b accellu n o n
pro rfu s
x q u a li p a rticu lx ipfius ad parti
culas
fu b fta n tix
h o m o g e n e x ,
n o n poffit gen erare u llu m #fle
x u m fcnfibilem c o tam e x ig u o
tcm p ufcu lo . Si co n cip iatu r fp lix -
r u l a , ad q u am p ro te n d itu r a d io
ca ru m particularum in lum in is
p articulam ; m ateria intra ^illam
in quibu fvis binis oppofitis h c -
m ifp h x riis eft quidem p ro xim e ,
n o n accurate eod em m o d o di-
ftrib u ta : ( hinc
h abetur a d h u c
a liq u a virium o p p o fitarum i n x -
qualitas , fed n im is e xigu a ic -
' 2
i
Sic
fp e d ti t a n t x v e lo c ita tis. E a i n x -
ualit as e ft m ulco
m a jo r , u b i
c tranfitus
c x u n a fu b fta n tia
in aliam 5
duiu n im ir u m p a rs
ejus
f p h x r u lx im m e rfa eft in
p r io r e , pars v ero in alia p o fte *
rio rc* H in c in
c o ca fu radius
m u ta t celeritatem ,•& v e r o etiam ,
nifi incidat
ad #p erp en d icu lu m ,
d ir e d io n e m
lui i t i n e r i s . V e l o
citas n o n eft tan ta , u t
red dat
in fen fibilem h an c m a jo r e m v i
riu m
in x q u a i i t a t c m , e ft v e r o
tanta , u t eludat illa m m in o r e m
faltem in n u m e r o lo n g e m a jo re
p a rticu la ru m , q u a r u m a liq u x fi
in c o cranfitu ita
a cced a n t ad
a liquas particulas fu b fta n tia r u m
ipfarum , u t
n o n o b fta n c c b r e
vitate tcm p ufculi i n d u d a ab illa
tanta v elo citate h a b e a tu r e ffe .
d u s vis m u t u x n o n m in u s e x i-
g u x , d e to r q u e b u n tu r ,
te
a b e r
r a b a n t , q u o d exit in ca u fa , c u r
n ulla fu b fta n tia fit p e r f e d e d ia -
p h a n a ,
reliquis p ro g re d ie n tib u s
ita , u t n ih il ad fe n fu m
r e c e
d an t a r e d o itin ere . Si v e l o c i
tas
cfTct a d h u c m u lto m in o r ;
tum v e r o
to ta lu x p er ip f a m
h o m o g c n c a m fu b fta n tia m
p e r
m earet m o tu t o r t u o s o , u t illud
o le u m p er m a rm o ra ,
ja m a c
cede u d o m a g is ad alias e
p r o -
