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
From a Conversation held the next Morning at Frodsham, with some
intelligent Persons who had descried it gliding gently throu’ the
Air; the Balloon appeared so extremely _minùte_, that it was thought
impossible to be the +one+ expected the same Day to rise at Chester
with an Aironaut.
[Illustration:
R. Newton } Arm. design et pinx. Stothard delin.
T. Baldwin} Sharp sculps.
_The_ BALLOON _over HELSBYE HILL in_ CHESHIRE _see page IIII b._
Published May 1ˢᵗ. 1786, by T. Baldwin Chester.]
[Sidenote: Half Mile _white_ Flag like a Feather.]
To use their own Expression, “_it coud not have been larger than a
Bladder, if they had seen it on the Ground_.” The same Persons observed
the _white_ Flag, like a _Feather_ about 8 Yards Distance from the
Balloon.
A second Air Bottle was thrown down.
[Sidenote: Course of the Balloon traced to shew the Manner in which it
was affected by the _Water_.]
78. The Town of Kingsley being to the East; Frodsham-Bridge half a Mile
to the West; the Conflux of the Rivers Wever, and the _wide_ Mersey
falling into the Sea one Mile farther Westward; the Balloon proceeding
in its usual Course over the Country in the _upper_ Current; began to
be _impeded_, on its vertical Approach +across+ the Meadows to the
Wever; was actually stopped; and being _entangled_ by the _River_,
evidently changed its former Direction: imitating, if possible,
_its_ Meanders; or at least making Gyrations in Circles of different
Diameters, at the same Time turning different Ways round its Axis:
describing Curves, something similar to that of the Moon round the
Earth in her Orbit; or of Saturn, Jupiter, and Mars, as those _Curves_
are delineated in the _Prints_ of Long’s Astronomy:[23] the Course of
the River being its _changeable_ Center.
79. It is to be observed, that if the Balloon had continued to pursue
its _former_ Course; no Danger was to be apprehended of its falling on
the Sea, or on the broad Branch of the River Mersey towards Warrington.
On the contrary, it must have gone into the Heart of the adjoining
County, and passed near Manchester.
It is likewise worthy of remark; that unless a Fragment of light
Vapour intervened for a few Seconds; the Country immediately below the
Observer was _continually_ illuminated by the Sun’s Rays: tho’ none but
the larger Objects were distinguishable at the Bottom of the profound
Abyss, _more_ than two Miles in Diameter at one View: that being the
utmost Boundary of the circular Prospect below.
[Sidenote: Circularity of Prospect below, bounded by _Vapour_.]
80. The _Sea_ tho’ known to be _near_ by the Dashing of its Waves upon
the Shore, which were plainly heard, was totally eclipsed: as if by
Haze or Vapour, which began to be accumulated only at a certain Height
_below_ the Balloon; yet in such a Manner as _not_ to prevent the solar
Rays from penetrating throu’, and shining bright upon the Water.
Public-domain text, read in full here on John Shaqi.
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