an steam protection starling electrical matter into mechanical matter
electrical_hazard is tangible_thing. sheetresistance is electrical_resistance. metal is ductile. bullion is precious_metal. soldering_iron is not electrical_device. milking_machine is not electrical_device. milking_machine is electrical_device. electrical_conductor is tangible_thing. electric_power_pylon is tangible_thing. soldering_iron is electrical_device.