Imitations of Thunder, and Other Illusions.
Refutation of All Heresies (Philosophumena) · Saint Hippolytus of Rome
Thunder is produced in many ways; for stones very numerous and unusually large, being rolled downwards along wooden planks, fall upon plates of brass, and cause a sound similar to thunder. And also around the thin plank with which carders thicken cloth, they coil a thin rope; and then drawing away the cord with a whirr, they spin the plank round, and in its revolution it emits a sound like thunder. These farces, verily, are played off thus.
Ref 2.32.1
There are, however, other practices which I shall explain, which those who execute these ludicrous performances estimate as great exploits. Placing a cauldron full of pitch upon burning coals, when it boils up, (though) laying their hands down upon it, they are not burned; nay, even while walking on coals of fire with naked feet, they are not scorched. But also setting a pyramid of stone on a hearth, (the sorcerer) makes it get on fire, and from the mouth it disgorges a volume of smoke, and that of a fiery description. Then also putting a linen cloth upon a pot of water, throwing on (at the same time) a quantity of blazing coals, (the magician) keeps the linen cloth unconsumed. Creating also darkness in the house, (the sorcerer) alleges that he can introduce gods or demons; and if any requires him to show Æsculapius, he uses an invocation couched in the following words:—
Ref 2.32.2