The gyroscopic system for gyro monorail trains that Brennan developed. (Credit: Primal Space) Everyone who has ever handled a spinning gyroscope found themselves likely mesmerized by the way it ...

The gyroscope was hydraulically driven off the motor, and it took three full minutes to wind its way up to 6,000 RPM, so it’s not intended for quick getaways. But the gyro would keep spinning ...