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The Chemistry of Powder and Explosives - Sciencemadness Dot Org

The Chemistry of Powder and Explosives - Sciencemadness Dot Org

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94 PYROTECHNICS<br />

they confine themselves to making serve only for the amusement<br />

<strong>of</strong> children.<br />

However, pastilles may become charming pieces <strong>of</strong> fireworks,<br />

fit to refresh all eyes. <strong>The</strong>y can be made to produce<br />

FIGURE 32. Pinwheels, Tessier, 1883. Wheels which show an inner circle<br />

<strong>of</strong> colored fire. Plate 1 (above) pictures pinwheels which are intended to<br />

be sold as completely consumable. <strong>The</strong> instrument represented at the<br />

bottom <strong>of</strong> the plate is the ramrod for tamping the charges in the pipes<br />

Plate 2 (below) represents pinwheels which are intended to be exhibited by<br />

the pyrotechnist himself: the wooden parts are to be recovered <strong>and</strong> used<br />

again.<br />

truly marvellous effects, considering the conditions imposed<br />

by their size, effects all the more remarkable in as much as,<br />

by the very reason <strong>of</strong> these same conditions, they have no

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