Huygens, Christiaan, Christiani Hugenii opera varia; Bd. 1: Opera mechanica

Table of Notes

< >
[Note]
[Note]
[Note]
[Note]
[Note]
[Note]
[Note]
[Note]
[Note]
[Note]
[Note]
[Note]
[Note]
[Note]
[Note]
[Note]
[Note]
[Note]
[Note]
[Note]
[Note]
[Note]
[Note]
[Note]
[Note]
[Note]
[Note]
[Note]
[Note]
[Note]
< >
page |< < (46) of 434 > >|
7346CHRISTIANI HUGENII
Jam poſtquam utrovis modo eorum quos diximus, ſed
11Descri-
PTIO Ho-
@OLOGII.
priore potius, examen inſtitutum fuerit, ſi multum aberra-
re
à media dierum longitudine horologium reperiatur, adeo
ut
differentia ultra tria quatuorve prima ſcrupula aſcendat,
remedium
adhibebitur aucta aut diminuta ipſius penduli longi-
tudine
.
Ubi hæc tenenda eſt regula, tot ſcrupulis primis,
in
ſingulos dies, motum horologii acceleratum aut retarda-
tum
iri, quot {7/10} unius lineæ auferentur pendulo aut adden-
tur
.
Cumque ad veram menſuram hoc pacto jam prope re-
22TAB. II.
Fig
. I.
ductum erit, reliqua correctio transpoſitione exigui ponde-
ris
Δ, virgæ V V adhærentis, commode peragetur.
Id
pondus
lentis formam habet, cujus ſectionem ſecundum
axem
in figura 1.
expreſſimus. Et quia tantum viceſimam
triceſimamve
, aut etiam minorem, partem æquat ponderis
X
, hinc fit ut ſat magnis ſpatiis è priore loco diſcedens,
haud
multum tamen perpendiculi motum afficiat, acceleran-
do
nempe quoties verſus mediam virgæ longitudinem attra-
hitur
, retardando cum inde ſurſum aut deorſum movetur.
Ne vero diu punctum illud quærendum ſit quo veriſſimam
daturum
ſit dierum menſuram, diviſimus certa ratione, ex
motus
legibus petita, inferiorem virgæ medietatem, poſito
nimirum
pondere Δ parte quinquageſima ponderis X, pari-
que
gravitate ipſius virgæ V V.
Quæ quidem diviſiones fi-
33TAB. II.
Fig
. 4.
gura 4 exhibentur, ubi penduli portio inferior in tres partes
ſecta
cernitur, quarum, quæ infimo loco ponenda, eſt A B.
Punctum A eſt centrum gravitatis ponderis X, à puncto
autem
C, centro oſcillationis, partes ſingulæ, quindecim
ſcrupulorum
ſecundorum differentiam diurnam efficiunt, ubi
tali
intervallo mota fuerit lens Δ.
Demonſtratio autem divi-
ſionumque
inventio, dabitur in iis quæ de Centro Oſcilla-
tionis
.

Text layer

  • Dictionary

Text normalization

  • Original
  • Regularized
  • Normalized

Search


  • Exact
  • All forms
  • Fulltext index
  • Morphological index