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ghey be clai2iclr,<br />
otion fro1m<br />
Klieir qpring. If they have fo much Elaiticity<br />
as Suffices to make them rebound with a quarTe.<br />
ter, or half, or three quarters of the Force with<br />
which they come together, they will. loie three<br />
quarters, or ha14 Or a quarter of their ~,lotion.<br />
And this may be tried, by letting two equal<br />
Pendulums fall againit one another from equal<br />
heights. If the Pendulums be of Lead or Ioft<br />
Clay 1 they will lofe all or almoft all their MOtions<br />
; If of elafiick Bodies they ~~$11 lofe all but<br />
what they recover from their Elnlticity. If it:<br />
be fajd, that they can lofe no Motion but whae:<br />
they communicate to other Bodies, ‘the confequcnce<br />
is, that in ‘ULZL’LLO they can lofe no Motiong<br />
but when they meet they muft go on and<br />
penetrate one another-s Dimeqfians. If three<br />
equal round VeiT’eIs be .filled, the one with Water,<br />
the other nrith Oil, the third with molten<br />
Pitch 9 and the Liquors be itirred about alike<br />
to give them a vorticnl Nlotion ; the Pitch by<br />
its Tenacity will lofe its Motion quickly 9 the<br />
$31 being lefs tenacious will key it longer, and<br />
the JVater being lef‘s tenacious will keep it long-<br />
@I’& but yet will lofe it in a ihort time. Whence<br />
it is eafy to undcritand, that if many conti’guous<br />
aTortices of molten Pitch were each of them as<br />
large as thofe which fame iilprjafe to revolve<br />
about the Sun and fix’d Stars, yet thefe and all<br />
thew Parts would, by their tenacity and liitlinefs,<br />
~omn~unicate their Motion to one another till<br />
they all reited among themfelves. \rortices of<br />
$X1<br />
’<br />
at Water 5 or fame ._ fluider . iMatter, might<br />
ccjn-
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