Why Did We Stop Using This Free Cooling Machine?

For over a century, this little spinning dome cooled buildings for free using nothing but wind and physics — yet you won't find one on a single new house today. This video reveals exactly how the turbine ventilator works, the tested numbers behind it, and the three reasons that have nothing to do with performance that made it vanish. #TurbineVentilator #ForgottenTech #PassiveCooling ——————————————— Outlier examines cases where the evidence doesn't match the official story. Primary sources only. New investigations every Tuesday and Friday. 🔔 Subscribe for more Sources and references available on request. ———————————————