Perché a Manhattan esce fumo dai tombini?
2 Jan 2025 · 0 min
0:24
In this short Italian monologue, Massimiliano Dona points out the well‑known sight of "smoke" billowing from Manhattan manholes and clarifies that the phenomenon is actually steam released from the city’s extensive high‑pressure underground heating system. He attributes his understanding to a knowledgeable tour guide who explained that the steam is a by‑product of the district‑wide hot‑water network that supplies heat to many buildings, and that the manhole vents serve to safely vent this water vapor.
