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# Title: Leibniz-Handschriften zur Varia Physica LH 37, 4
# Folio 158r, page id 00068606:0319
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uod artificium si ad Thermometrum hoc clausum sed exiguum et
portatile applicare vellemus, opus esset in Thermometro natare frstum
frustum ferri aut magnetis in Q, quod applicatum extra aliud frta
frustum magnebis aut ferri secum attollat deprimatque. Quo facto statum
ilud quoque facile machinatione efficere licebit, ut gradus termomet
se se ipsi a Barometro detrahant, nec ullo calculo opus sit ita
Barometrum hac in marsupio gestatum, aut in hypocansta
ac baluea translatum nullam subibit mutationem
Dorro eundem effectum forte etiam ope duorum Barometiorum
sed diversae pilarum rationis, assequi licebit, atque ita
carere licebit magnete. Ponams enim aerem unius pilae
esse rariorem quam aerem alterius pilae, quod qua proportione
rat, discere licebit ex ratione ipsius NM altitudinis Mercurui
tubo PoL
super honiz outem in uno ad altitudinem ejusdem in
Ci
alio Cponendo. Cd PBO esse unum Barometrum (resecto pA,
clastica
aer
et DNMEL alterum. Nimirum Vi aeris seu densitas in C
etastricae
juncta ponderi Mercurii a P, est aequalis vi aeris seu densitati
aeris in D, punctae ponderi mercurii NM. vis elaestica
densitas aeris in C vocetur d. densilas ejusdem in D vocetur
d. pondus Mercurii qD vocetur p. et pondus Mercurii
N M vocetur 10. Ergo d+ p  aequ. d+ . aequ V.
praesenti
aequal. ipsi V. ponderi totius Atmospharae, seu ponderi, praesenti
ponderi. Mercurii cujus altitudo 30 pollicum 27: vel 30 pollicum:
nota autem ultitudo QP, et NM, ergo et ratio ejus ad pollice
istos totius altitudinis, notae ergo potentiae p. . in ratione ad
tolam V. Erga quis datur Et quia d aequ. V - p. et
non
+ 8 aequ. V - 20. dabitur  aequ. 
vE
v- p. Hinc aucta
v - 1d
v, seu aeisatmosphaerae pondere, augettur etp