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# Title: Leibniz-Handschriften zur Mathematik LH 35, 10, 18
# Folio 12v, page id 00068172:0024
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Rescripsi ad Dn. Menkenium:
per P lacent quae el. Dn. Lichtscheid ingeniose
excogitavit, circa motus pendulorum non tantum
per Geometriam sed et per experimenta examinandos
Responsum meum ad Papinianas objectiones interim
ad ipsum pervenisse puto. Lineam quam per
puncta describepe docet, (tanquam locum pendulorum
certis oscillationibus determinandis inservientem) comperi
pendulorum
quae nonnihil composita prima fronte visa est, deprehendi
ipsissimam esse parabolam, ecujus (si figura ipsius 6
 inspiciatur) vertex sit V axis VEZ 
 et VA sit quarta pars lateris recti, ita
ut a seu EB sit semilatus rectum. ita ipsius apera
quaedam non ineegantia circa parabolam observata
Et in fig. 7. reperieta rectas
transver siut  (ut 12, 14, Y0, etc) esse
omnes ad cuvam Iseu ejus tangentem), normalas.
e
Ex nora parabolae proprisetate; pa
taetiam ta ipsius opera quaecam non inelegantia circa
parabolam observata habemus.