"Every perception is to some degree an act of creation, and every act of memory is to some degree an act of imagination."
-- Gerald Edelman, Second Nature: Brain Science and Human Knowledge
The representation of a clock to goe by water or sand.1 ProblemeThe Newton Project Knowledge Graph2020-10-08Journal1 Probleme
.1. By a line of tangents upon a square ruler & a plummet to know at one view whither the stile of a diall bee true & thereby to erect a stile.
2\. the stile erected, by a plumb line let fall from the stile to find the meridian line.
3\. By the said ruler to find the substilar & draw the other hower lines. Note that this may be done though the wal bee not eaven &c.
To make metalline Globular dust for the said clock instead of sand. Daube the hollow cone B with Figure pitch &c on the inside, fire it. through which fire (by the helpe of the tunnell A) cast the filings of brasse or pewter &c which molten into a globular forme may fall into the bason of water C.