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# Title: Lectures De Potentia Restitutiva, Or Of Spring (shelfmarks Leibn. Marg. 105, Stück 1; Leibn. Marg. 105)
# Folio 1, page id 859264114:0007
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=859264114&page=7
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# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 47 lines, status machine
# Lines: 47 recognised, mean confidence 0.78
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Poteni Resticutiva,
d 
OFu
SPR IN C.
 HC ThcOry OF Sprinss, thousti
actempted by divers eminent
Machematicians ot this AgC
has aitherto noc been Publisted
by any. Ir it no about cighteen
vears lince I Arst tound it out,
but delignins to apply ic to lome
particular ulc, I omitted the
publistrins chereot.
About chrcerears since Tis Majesty iras plealed 10
Scc the Experiment chac made ouc this Theory tried
at White-Hall, a5 also my Spring Watch.
About Eroycars (incc Iprinted this Theory in an
Anaoram at theend ot my Book oF theDescriptionSOF
HeliolcoDes, viz ceriino55stt nuid est, Dt tensio (ic
vis; Thatis, ThePomer ot anr spring is in chelame
proportion mith ehe Tention thereot: That is, iFone
porrer sretch or bend it onc space, tro will bendit
erro, and threc will bend it chrec, and (o formard.
Nom as the Pheory isvery Mort, (o themay oFtry-
ins ic is verr cahe.
Take then a quantier of even-dramn Wire, cither
Scecl, Iron, Or Brals, and coyl it on an even Cy.
linder into a Helix oF what lensth or number oFturns
vou please, then curn the ends ot the Wire into
Loops, by one oF rrhich suspend chis coyi upon a
nail, and by che orher sustain the meishe thac vou
roula hare to extend it, and hansins on several
Wcirhes obserre exactly cowhat length cach oF the
ireistus do extend it berond chelensth chat its omn
eishe dochsrecct ic to, and rou halI find chac it
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