We shall have to employ a large-grained powder," continued the major; "its combustion is more rapid than that of the small.
We shall run no danger of an explosion; and it is necessary that our powder should take fire instantaneously in order that its mechanical effect may be complete.
In his Columbiad charges Rodman employed a powder as large as chestnuts, made of willow charcoal, simply dried in cast- iron pans.
He now simply said, "Well, my friends, what quantity of powder do you propose?
I shall surprise our friend Maston, then, by stigmatizing his calculations as timid; and I propose to double his 800,000 pounds of powder.
The thing is very simple; we must reduce this enormous quantity of powder, while preserving to it its mechanical power.
This powder, now called pyroxyle, or fulminating cotton, is prepared with great facility by simply plunging cotton for fifteen minutes in nitric acid, then washing it in water, then drying it, and it is ready for use.
It ignites at 170 degrees in place of 240, and its combustion is so rapid that one may set light to it on the top of the ordinary powder, without the latter having time to ignite.
1,600,000 pounds of powder, we shall have but 400,000 pounds of fulminating cotton; and since we can, without danger, compress
Barbicane and his bold colleagues, to whom nothing seemed impossible, had succeeding in solving the complex problems of projectile, cannon, and powder.
The advisory shall cover the importation, distribution, manufacture, storage, distribution, and use of (1) powdered
surgeon's gloves; (2) powdered
patient examination gloves; and (3) absorbable powder
for lubricating a surgeon's glove.