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
[Sidenote: Descent at first rapid.]
96. The circular Mouth of the Balloon continuing wide open, at about
18 Inches Diameter; so much _cool_ and _moist_ Air rushed in during
the Descent; that, tho’ its Momentum or acquired Motion was retarded
by _Dispersion_ of the Ballast, it had not yet recovered an +actual
levity+: being too near the Ground before the second Bag was discharged.
_Presuming_ however that 24 Pounds Weight of Ballast thrown out,
was sufficient to break the Fall, tho’ in a cool moist _condensing_
Atmosphere of _pure defloguisticated_ Air; the Event of _landing_ was
_waited for_.
[Sidenote: A _depressing_ Torrent of Air on the Balloon.]
It has been _since_ imagined that a _heavy_ +depressing+ torrent of
_cool_ Air took Place from the North-West at a certain Height over the
Water, and _assisted_ the Descent of the Balloon.
[Sidenote: The Balloon descended with a _rushing_ Noise.]
97. In order to judge with what Rapidity the Balloon descended, when so
+low+ as to be within the Influence of the _under_ Current, while the
_cool moist_ Air rushed in at the Bottom, and most probably pressed out
the Gass; the following Intelligence has been communicated by a Person
of Veracity.
[Sidenote: Anecdote shewing the Rapidity of Descent, at first.]
As two credible Farmers were working, with their Servants, in the
+harvest+; on hearing a hollow, rushing Sound in the Air, which they
took to be a _Whirl-wind_, or _distant Thunder_, and which seemed
every Moment to encrease and approach them; they all retreated under a
large Oak. While there, they first perceived the swift Descent of the
Balloon. Two, who were afraid of Thunder, then began to take Courage,
boldly exclaiming they shoud never fear Thunder again, since the
_Falling_ of a Balloon coud be attended with so _terrible_ a Noise.
CHAPTER XVII.
BALLOON STILL DESCENDING.
Section 98. The Car, gliding _over_ Trees in the _farther_ Hedge-Row of
a Grass Field, glanced on the Ground.
[Sidenote: Caution on Landing.]
The Aironaut, being _prepared_ for the Event, supported a _Part_ of the
Weight of his Body by his Hands, grasping the _upper_ Hoop.
The Balloon _stooping_, and declining from the North-West Breeze, drew
the _upper_ Hoop out of the Perpendicular: by which Means, the Bottom
of that Division of the Barometer-Frame which contained the _Tube_,
pressed against the Bottom of the Car on the Ground, was _separated_
from the remaining Half of the Frame, and fell on the _Grass_.
[Sidenote: More Ballast parted with, viz. seven Pounds.]
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