Masao Dahlgren Twitter पर: "First investigated in 1963, the ring-laser gyro allowed for inertial navigation without any moving parts—key for harsh reentry environments. Photo credit: Honeywell https://t.co/FHR4i87C0H" / Twitter
Blocks of ring laser gyroscope
ION Museum: Very Large Ring Laser Gyroscopes (RLG)
Laser gyro | Article about laser gyro by The Free Dictionary