Apollo’s “kithara” (guitar)

Kostas Kotsanas

Level horizontal sundial (Eudoxus’ “Arachne” and “Pelekinos” of Patrokles)

Kostas Kotsanas

The “anaphoric” clock

Kostas Kotsanas

The “hysplex”

Kostas Kotsanas

The “pandoura” (trichord)

Kostas Kotsanas

The bipod crane with winches for the elevation of mast and load

Kostas Kotsanas