Zigzag Wires Above Trams 🧐 What Are They For? #secret #funfacts #zigzag

Zigzag Wires Above Trams 🧐 What Are They For? #secret #funfacts #zigzag

Curious about the zigzag wires above trams? Learn their fascinating purpose in this quick video! 🚋⚡ #Trams #Engineering #funfacts