The Fiery Shower
On the plate put a number of any kind of seeds, grains of sand, or
brass dust. The conductor being strongly electrified, those light
particles will be attracted and repelled by the plate suspended from
the conductor, with amazing rapidity, so as to exhibit a perfect fiery
shower.
Another way is by a sponge that has been soaked in water. When this
sponge is first hung to the conductor, the water will drop from it
very slowly; but when it is electrified, the drops will fall very
fast, and appear like small globes of fire, illuminating the basin
into which they fall.