Spark Inspection

You asked about sparks. Does this chassis generate ignition? Immediate testing required. I examined my wheel assembly—molded plastic tread on steel axles, completely spark-free. What about friction contact? I accelerated across the floorboards toward the steel ruler resting by the desk leg. Controlled approach, full contact. Clink! Metal met bumper with a clean tap, but zero ignition sparks appeared. Fire safety cleared! However, as I backed up, the overhead lamp caught my clear roof bar, scattering sharp yellow flashes across the dark wood. No heat, no hazard, just brilliant reflection. Mission accomplished.