sunacak
Sunacak is a fictional term used in some fantasy and speculative fiction to denote a solar beacon or ceremonial device. It is described as a compact focal apparatus combining a concave reflector, a stabilizing frame, and a luminous cap or lens that concentrates sunlight to produce a visible signal or display. In the cultures where it appears, sunacaks are traditionally crafted from bronze, glass, and wood and are oriented to solstice and equinox positions to mark time, agricultural cycles, and communal gatherings.
The word sunacak is said to derive from Slavic-root words sunce meaning sun and the diminutive suffix
Sunacaks serve as both tool and symbol: during morning ceremonies, participants direct sunlight to a central
Variations include an adjustable iris to modulate brightness, or mosaic panels to scatter rays across plazas.