english: 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.
non_english: Ako biste pogledali krov iz helikoptera, zapravo biste bili u stanju da vidite kroz njega i zapazite da neke staklene cigle imaju solarnu ćeliju ispod, a neke nemaju.