Airopaidia : $b Containing the narrative of a balloon excursion from Chester, the eighth of September, 1785, taken from minutes made during the voyage; hints on the improvement of balloons ... To which is subjoined, mensuration of heights by the barometer, made plain; with extensive tables. The whole serving as an introduction to aërial navigation.Baldwin, Thomas
History
Airopaidia : $b Containing the narrative of a balloon excursion from Chester, the eighth of September, 1785, taken from minutes made during the voyage; hints on the improvement of balloons ... To which is subjoined, mensuration of heights by the barometer, made plain; with extensive tables. The whole serving as an introduction to aërial navigation.
Baldwin, Thomas
Aeronautics -- Early works to 1900; Balloons -- Early works to 1800
It is therefore more than probable, that as the Balloon continued
to ascend; it was _becalmed_ in a _quiescent Stratum_ or Bed of the
Atmosphere, which existed for a certain Depth or Thickness, between
the lower and upper Current: and that the Direction of the Balloon was
changed; the Instant it arrived within the Influence of the _upper_
Current.
[Sidenote: Of _rowing_ the Balloon to any Point of the Compass.]
Consequently, with a proper Apparatus to ascend and descend _at Will_,
without Loss of Gass or Ballast; the Balloon woud have remained
suspended _invariably_ at the same Height, and _vertically_ over the
same Spot of Earth: or, with propulsive Machinery; might, on the same
Level, have been _rowed_ to any Point of the Compass.
[Sidenote: The Balloon, influenced on its Approach towards _Water_.]
76. In passing _only_ +across+ Trafford Meadows, three Miles from
Chester; the Balloon lost its usual progressive Motion over the
Country: for more than a Quarter of an Hour, following the Course of
the River Goway to the West North-West, and towards the Sea, as at
Chester: turning gently backwards and forwards round its own Axis,
near the Villages of Great and Little Barrow: and making Curves over
the Meadows, whose Breadth at those Places was about a Mile.
[Sidenote: Its Progress marked.]
The Balloon then returned into its former Direction: inclining,
_again_, towards a Brook and Meadow near Alvanley: passed Eastward a
little to the left of Manley (_white_) Mill: crossed the Forest of
Delamere, and Crag of Helsbye, (about twice the Height of Shooter’s
Hill, near London;) whose lofty Summit was _apparently_ reduced to a
common Level with the Valley made by the River Wever, and with the
adjacent Sea Marsh. Nor coud it have been distinguished by a Stranger,
as an _Eminence_.
[Sidenote: Hills and Vallies on a Level.]
Indeed, the Wood near Kingsley, which grows on a sloping Ground,
skirting the Hill, and _from_ the Sun, put on a _dusky_ Hue; and the
Tops of the Trees a _darker Green_: this Difference of _Colour_,
conveyed the _faint Resemblance_ of a rising +Slope+. A _real_
Knowledge of the Country probably contributed to aid the Imagination in
this Distinction.
Note: the Print representing a View of the Balloon over _Helsbye Crag_,
refers to a Scene in the above Chapter.
CHAPTER XIV.
[Sidenote: 39 Minutes past II, Frodsham Town and Bridge seen.]
Section 77. At 39 Minutes after II, Thermometer 60, Barometer 23¾,
corresponding to the Height of a little more than a Mile,[22] _the
Vapours dispersing_, discovered the Town of Frodsham, and Bridge over
the Wever distant from the Town one Mile: the Balloon still continuing
at a vast Height; having risen imperceptibly from the Time that the
Ballast was thrown down.
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