|
The excerpt represents the core issue or deciding factor on which you must meditate, and is drawn from Twelve Stories and a Dream by H. G. Wells: which these balloons sustained, of hollow, rigid tubes, the air
in which, by an ingenious contrivance, was automatically pumped
out as the apparatus fell, and which then remained exhausted
so long as the aeronaut desired. There were no wings or propellers
to his machine, such as there had been to all previous aeroplanes,
and the only engine required was the compact and powerful little
appliance needed to contract the balloons. He perceived that such
an apparatus as he had devised might rise with frame exhausted
and balloons expanded to a considerable height, might then contract
its balloons and let the air into its frame, and by an adjustment
of its weights slide down the air in any desired direction. As it fell
|
