If you were to look at it from a helicopter, you would be actually able to look through and see that some of the glass tiles have a solar cell behind them and some do not.
إذا نظرت إليه من مروحية، سيمكنك فعلًا النظر عبره وترى أن بعض الألواح الشمسية يوجد تحتها خلية شمسية وبعضها لا.