Sphere of Archimedes
From GATE
The legendary sphere of Archimedes (page in Athanasius Kircher at Stanford): link
Cited in Kircher Works
Magnes sive de arte magnetica (1641): p. 341
The legendary sphere of Archimedes (page in Athanasius Kircher at Stanford): link
Magnes sive de arte magnetica (1641): p. 341