Car bodies glide across polished factory floors from one assembly station to another, as if thrust by telekinesis, in a mechanical dance.

Automated sleds ferry stamped metal to lines of robotic arms, lifting everything from car doors to engine blocks as if they were weightless. The arms bolt parts into place in rhythmic motion as robotic dogs probe their sensor-embedded noses to sniff out defects.

For many steps in the process at Hyundai’s sprawling Georgia auto factory, vehicles take shape without a person in sight. It’s a testament to mechanized ingenuity, while simultaneously a little evocative of science fiction where machines endlessly build themselves in sterile isolation.

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