HEATED AIR BALLOON.

Make a balloon, by pasting together gores of bank post paper; paste

the lower ends round a slender hoop, from which proceed several wires,

terminating in a kind of basket, sufficiently strong to support a

sponge dipped in spirit of wine. When the spirit is set on fire, its

combustion will produce a much greater degree of heat than any ordinary

flame: and by thus rarefying the air within the balloon, will enable it

to rise with great rapidity, to a considerable height.

Parlour Magic · 第 264 / 389 题