Mathematicall Magick

Ancient engines, and the gunpowder instruments now in use.

Ch. 20. That it is possible to contrive such an artificial motion, as may be equally swift with the supposed motion of the heavens.

Ch. 1. The divers kinds of automata, or self-movers. Of mills. Of the contrivance of several motions by rarefied air. A brief digression concerning wind-guns.

Ch. 2. Of a sailing chariot, that may without horses be driven on the land by the wind as ships are on the sea.

Ch. 3. Concerning the fixed automata, clocks, spheres representing the heavenly motions. The several excellencies that are most commendable in such kind of contrivances.

Ch. 4.