Gassendi, Pierre, De proportione qua gravia decidentia accelerantur, 1646

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1quatuor horarum spatio proximè reuolui ſupponatur; neceſſe
eſt
, vt quæ partes hoc momento celeriùs, tardiuſve moueri inci­
piunt
, iterùm poſt horas viginti quatuor ſimili celeritate, aut
tarditate
moueantur, vt manifeſtum eſt.
Si hæc igitur di­
uerſitas
motus cauſſa eſſet quotidianorum æſtuum, deberent
præcisè
poſt horas viginti quatuor recurrere, cùm vnâ ferè
horâ
quotidie tardiùs recurrant.
Quò fit, vt ſingulis men­
ſibus
tunc mare maximè quieſcat, cùm habita ratione motus
Telluris
ſummè feruere deberet; & contrà, tum vehementer
ferueat
, cùm illud paccatè quieſcere oporteret.
Verùm vno
verbo
inſinuatum eſt in Epiſtolis naturam aquæ flui­
dam
obſtare, ne aqua circumferatur tam facilè, ac reli­
qui
globi compacta natura.
Quippe cùm motus re­
liqui
globi non exquiſitè obfecundet (ſcilicet, ſi ob­
ſecundaret
, nullus æſtus exſiſteret) ideò neceſſe eſt
eius
motum fieri non-nihil retardatiorem, & menſurâ
quidem
tarditatis acceptâ ex portione motus Lunæ
menſtrui
addita diurno Telluris, quatenus ab ipſo de­
pendet
, imò idem reipsâ eſt.
Quia enim, vt Sol ſibi ipſi
intra
dies proximè viginti ſeptem circumductus Ter­
ram
vnà circumvehit, ſed ſegniùs tamen inſequentem,
& non-niſiintra annum abſoluentem circuitum, pro­
pter
diffuſiores, paucioreſque radios, qui cùm in Ve­
nere
, & Mercurio confertiores ſint, circuitus in ipſis
faciunt
celeriores: ſic Terra ſibi circumducta intra ho­
ras
viginti quatuor, Lunam circum ſe abripit, ſed ſe­
gniùs
tamen obſequentem, & non-niſi intra menſem,
abſoluentem
circuitum, qui abſolueretur haud-dubiè
celeriùs
, ſi confertiores radios exceptura, circum ferretur
propiùs
: Ideò, vt motus Terræ annuus eſt veluti com-

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