The First Steam-Boat
Forfatter: Jonathan Hulls
År: 1860
Forlag: E. & F. N. Spon
Sted: Bucklersbury
Sider: 48
UDK: 629.120(09)
Description And Draught Of A New-Invented Machine For Carrying Vessels Or Ships Out Of, Or Into Any Harbour, Port, Or River, Against Wind And Tide, Or In A Calm.
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C 2» )
Uquid be weighed and if you make the
fame Experiment -with otherLicjuids their
Weights wiH be as their ZDenfitiesj, 3ut
as this Method is liableto Several Dif-
ficulties inPradice 1 /Hall not (pend any
Time in explaining it here.
When the Preflures of two Liquids are
equal, the Quantities of matter in Co-
lumnsihat have equal Bafts do notdiiFer,
wherefore the Bulks,, that iSj the heights
ofthe Columns are Inversely astheDen-
firie^, whence may be deduced the Me-
thod of Comparing them together.
Experiment I.
PourIVIercury into a Curve Tube A, 4b
as toftii the lower part of the Tube from
B to C. pour in Water inoneLeg 4'rom
B to E. in the other Leg your Oy] of
Turpintine till both the Surfaces ofWLer-
c«ry B. C. Le in the fame Horizontal
Line, and +he height of the Oyl be C.
X>, thefe heights will be as 8? to too,
which i$ the inver/e Ratio that theDen-
lity ot the AV^terhas to the Denfity of
Oyl of Turpentine, and therefore t liefe
Denfities are to each other as loo+o Sy.
The Mercury is poured iir, left the Li.
quids /hould be mix’d in the bottom of
the Tube.
The