In 1957, Ford unveiled the Nucleon, a concept car powered by a small nuclear reactor that would be swapped out at service stations every 5,000 miles. This episode dives into the vast chasm between mid-century atomic optimism and engineering reality, exploring how a uranium-powered family sedan ever seemed like a logical next step.

We reconstruct the 1950s mindset that treated nuclear power as an inevitable paradigm shift, from nuclear-powered tanks to atomic bombers and rocket projects. We unpack the Nucleon's steam-turbine drivetrain borrowed from nuclear submarines, the modular swappable reactors tailored to your lifestyle, and the fatal physics problem the styling department simply assumed engineers would solve later: the five feet of dense shielding required to protect the driver from radiation.

• Why the era's atomic optimism  ...