DIY-COOLEST MECHANICAL ENGINEERING PROJECT(SELF BALANCING GYROSCOPE BIKE ) - YouTube
1950s, historical, male supervisor overseeing young male technicians in an engineering workshop for aircraft components, including the 'master indicator', a unit in the Gyro flux gate compass system, England, UK Stock Photo -
Gyroscope - Wikipedia
Michell Engineering Gyro SE Small Footprint GyroDec Turntable