CANDLE-Bombs, a name given to small glass bubbles, having a neck about an inch long, with a very slender bore, by means of which a small quantity of water is introduced into them, and the orifice afterwards closed up. This
stalk being put through the wick of a burning candle, the vicinity of the flame soon rarefies the water into steam, by the elasticity of which the glass is broken with a loud crack.