Bernnan gyro monorail Brennan gyro monorail, single-track travel, balanced system, one-ton gyroscope, stabilization technology, monorail prototype, high cost, emergency issues, 32 km/h speed, alternative transport, dual-track rail, successful prototype, balancing mechanism, futuristic design, lack of confidence, engineering test, transportation innovation, costly project, historical monorail, monorail advantages. • Historical model • High technology Single track • Balancing system Gyroscope Emer