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# Title: Lexicon Technicum: Or, An Universal English Dictionary Of Arts And Sciences (shelfmarks Leibn. Marg. 71; ZEN Leibn. Marg. 71)
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doch ac anochier rime. See Tracts about sea-hich Forricellius atcerivards pursued and impro
redu ich sibce Sagaciey; invenrins, a5 a tar-
cher proot oE che Nocion oi che Graviry ot che
Air, Thac which ve call che Torricellian Fxperi
NI. Bopte Found a L amb s Bladder conrainine
aboue Z oF a Piur, and blonn ux, and WeIl driec
1o lose abour a Grain and s wrtien ic as pricke.
aud ehe Ait let OuE.
AIso, char a Lambs Bladaer beins conncerpoi
zed in a nice pair os Scales in che Receiver, on
che Aies beine drann oue, did manifestly pre-
ponderare; bur when the excernal Air as lec in
asain, che Scales rerurned ro cheir former Lqui
librium.
An Aolipile well beared, and rtien havins irs
Which che hole beins opened, the Air vas heard
plainty eo rust in wich a Whistlins noile, and
chen che Aolipile beins weiehi d again, it vas
manitesly heavier than it as betore.
The Maedebursick Fngine being weighed wten
Full oF Air, and afcerwares beins again weighec
Wohen evas ell exhausted, was tound eo weie
an encire Ounce and 23 less chan ic did betore.
And MP. Boyle Found by accurate Experiments.
Wrhen tull oF Air, chan atter ic was exhausted.
Eletound al(o thac
A CtaIS Bubble a5 bis as an FlenS F9B, harine
as much Rir as could be driven our by Flear, hact
then its Scem nimbly sealed up. and then beins
lete leisurely co cool (for chere is great danger ot
cheir breakins) was put into a nice Balance, and
then che Scales evere equipoized: Atrer ehe seal-
ed end beins varily broken of, the Air Was heard
eo rumt in wich a Wwhistline Noise, and chen che
Scale in which che Buble wras did manitestly pre.
Elling ie with Wacer, ic as found eo hold g0c
Grains oF chac Liquor; (0 thar allowins For = 0f
the Caviry ot che Bubblesbeins Alled ivich Air
ertich perhaps mighe weigh aboue a Grain, the
Proportion oF NaFeF EO Air appears in WeighErC
be abour 905 toone, and roundly ic may be sur.
Posed, a5 1000r0 one, becaule ris nor possible
Dut thac lome Air must remain in che Bubble
more than is non accounced for-
MP. Bople found by repeared Lxperimehes, thar
the eiptur oF Air rO Water is a5 100O1OI.
NIr. TTalley, in Philos.. Frans. NV. 18E, (2y5
Thac che Specisick Grarier oF the Air, near che
Parchs Surtace co thar of Wacer, ac severalery.
alS, Wa5 25 +10 840, 25 1 10 852, and 2S Y EC
860; che Mercury Aandins ac alI chole rimes a-
and consequenely che sir raretied wwhen aIl chese
ivere ery d, ic may rirhour sensible Prrour in
round Numbers, De Caid, char che Barometer
Aanding ac 30 tnches, and in a mean ectare ot
Flear and Cold, che Specifick Craviiy oF the sir
tOTater, I5 25 F 10800: Wheretore, since MerCU-
ey 10 Wacer i5 a5 13= 1O I, Nercury will berC
ATES WEIOFIT. The Weighe oFche Air waS. Rir 25 10800 1O F, and a Cytinder oF Air O
rable Rarefaction os tho Aer. Ana iu CLE Lal sil.
aore he relIS US, LMal He  B) nooe
exPerimenes, chac che Caue Guanens et HII, b7
onlx harins che Pressure of che demosphere caken ment.
ot in The Pa LSCC, at WMCHOUL aly
sidvencicious Flear eo enerease irs Sprins, voulo
polsels abore 13000 ciries ies narural Space Or
Vimentions.
Dr. Crezory in his Astron. P. 40T. Tews, cha
it Air expand ic selF accordins r0 MIr. Borl 5 ob
terved Law; viz. That the Spaces into which et
may be compressed are alvays reciprocally proportio
nal to ehe compressins weicht: lhen a Clobet
Air ot che Diameter oE ore Inch, il raretied (0
a5 laccordins eo char Rule) ic must be ac chedi
Farch) ill HII all che Planerary RegiOnS ad La
a5, and much bezond, che Sphere et Saturn.
And che Breac Dilatation and Compression OF AII
may De easily enoush conceired, wichour chelncer
vention oE ans subrilematrer, il re imagine cach
proper elastick Parriele of Air 1o be like a livele
Sprins ot a Warch coiled ux round, or mound up
likce a piece of Ribband: For, it you allon fur-
cher, that these Parricles hare alo 2 C ircular
Roll, Coil, Or Lamina ill endeavour r0 recede
trom che Axis OF its Nocion, and chis mOre Or
less accordins ro the Velocier ot their Morion
by erhich means chey will acquire a Springinels
outward like a Warch Sprins, and wvill endea-
vour coAy or unwind chemselres oue ro cheir FuII
Lenech, buc chac chey are hindered by ocher Tuch
Parricles on every side: And cheretore chese F.
lastick Parrieles in che lorver Parrs oF the AEmO.
sphere will alvars be Hepe bene or wound up, by
rhe weighe of the whole ot che Air; buc it ac any
eime cher can ser rid ot chis weishe and external ponderare by near ZoFa Crain. And afcer chis
pressure, cher will readily by cheir natural Sprine
evolre chemselres and extend cheir ROII, Or cir
cles ro rastly larger Dimensions. And chis maz
De the realon ot the Tumescence ot a Bladder
noc apparencly blonn our, in che exhaulted Re.
ceiver; ot a Full. bionn one (it dry) breatcine
chere, and ot che breakins ot lquare figured Vi-
als, when AOpE well, and che Air EHOUS
draon oA trom chem.
And cis equally calie ro conceire, that a BrCaI
Dilararion or Rarefaction of dir may be produced
by Flcac; For che Rapid Morion ol the Caloritick
Parricles must necds (o move the Aereal ones,
and by thac means may make them more endea
vour ro recedetromche Axis oF cheir Motion, and
consequently more unwind or unrollthemselves
must more chrust, by this encreased Sprins, aII
ocher Bodies trom them, and separare chemtetres
From one anocter
MP. Boyle in his Dilconele against Linus Mews
thac che Strenerhs required to compress air, are in
Reciprocal Proporrion (nearly) to the Spaces com-
prehendine the same Portion of Air–
Arst discovered by che great Galtileus; Who find- 10800 Inches or 900 Feet, is equal ro an Inch oE
ins char Wacer by pumpins could be raised no Mercury; Wheretore, il che dir vere chroveh
Norion ot an infinire fuga vacui vould nor do in mosphere ould be no more chan 5 Miles and
tance oE the Farchs Semi-diamerer (From che lirrle hole lope, as cooled and weiphed; atcer
Mocion round cheir omn Axes, che Parrs os each chac a (mall Receirer iveioh d 35 Grains more
Wheretore cher must cake up more space, and bouc 292; bac becaule tas Summer Weacher
hipher chan 24 or 35 Feer, concluded, rharthe out of an equal Densiey, the FseiphE OF the AF.
ehis Case; and cheretore happily fell on chinkcins one Tench of a Mile, and in che Alcent oE everr
ot he Couneer. Balance oE rhe Airs Weist 900 Feer teom ihe Farrtis Surtace, che Mercur