Bussard ramjet

A starship crew gets stuck accelerating, and they literally cannot stop.

And the mechanism Anderson uses here is based on the Bussard ramjet concept, which is a theoretical method of space propulsion.

Okay, break that down for me.

Sure.

The younger George Cox continues his training.

Newsmen interview him and Yogi on the need for more Bussard ramjets and scout ships to seek out Earth-like worlds that circle other stars.

The older George Cox plays the stock market and waits.

Frank Curie has spent as much time in space as I have, up until the Ulysses flight, which hasn't happened yet.