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
At first, which was _more_ than five Minutes before it came to the
Ground, it seemed to him as if it coud not have been _larger_ than a
Bladder.
He saw it reascend, first _sideways_, then upright; moving from the Sea.
Afterward it rose _rapidly_, and rather _towards_ the Sea and
Warrington, distant twelve Miles.
[Sidenote: _Apparent_ Size of the Balloon, when seen from _below_.]
He watched it for a Quarter of an Hour: and caught it by Intervals,
near and above a Cloud in the _blue_ Sky, at so great a Height that it
looked like a _Lark_: and at last: so _small_ that the People who stood
near him coud none of them regain a _Sight_, when they had once lost it.
105. The remaining _white_ Flag was unfolded, and tyed to one of the
Balloon-Cords attached to the _upper_ Hoop, at a proper Distance to
_play_ freely in the Wind: and, notwithstanding all that has been
said to the contrary, shewed _instantaneously_ and _plainly_ the
corresponding Changes made by the Wind in different Directions.
And, as the Breeze was accompanied with a Sensation of _Coolness_
against the Face of the Aironaut, looking towards that Quarter from
whence the Wind came, as indicated by the Flag; (which Quarter was
not in a Line with the Path of the Balloon;) the Flag must have shewn
that the Change was made by the _Air_ in _its peculiar_ progressive
Direction, and not by _its_ Resistance or Progress in the Track of the
Balloon.
[Sidenote: _Balloon_ moving in a Direction _different_ from that of the
_Air_.]
106. It is probable that the _Momentum_ of the Balloon, acquired by its
centrifugal or accelerating Force upwards, might have kept it in _one_
Direction, while it continued to rise throu’ _different_ Currents.
CHAPTER XIX.
BALLOON STILL RE-ASCENDING.
[Sidenote: Balloon vertical over Aston, for 8 Minutes.]
Section 107. The Balloon being now _wholly_ unconfined, continued to
_rise_ with _great_ Rapidity: crossed the Meadow in the Sea-Breeze, and
remained as _before_, for 6 or 8 Minutes,—by Intervals _gently_ turning
on its Axis—almost wholly _vertical_ over Aston-Hall, but rather more
to the _Eastward_ of it.
The Country still exhibited _bright gay_ and +extensive+ Prospects.
108. _Three_ Sail of _Vessels_ appeared in the +Channel+: and _four
more_ were sailing down the River Wever, _apparently_ just under the
Balloon, diminishing to _mere Cockle-Shells_, or like _Boats_ which
have _no_ Rigging.
Shouts continued.
Corn and Cattle were visible in the Fields and Meadows.
Aston, tho’ a _large_ and _elegant Mansion_, appeared like a _House_
which Children _build_ with _Cards_.
[Sidenote: Chilliness felt at the same Height in re-ascending.]
109. A Chilliness in the Air was again perceived in rising, as he
imagined, to the _same_ Height at which he felt it in _descending_,
indicated by the Thermometer at 55°. (Sect. 92.)
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