21. These ambiguities are known as gimbal lock in applications. 22. The gimbal servo motors position the gimbals to compensate for the original deviation. 23. The gimbal servo motors position the gimbals to compensate for the original deviation. 24. The NTSB said it has not yet found the gimbal nut from Flight 261. 25. Imagine the gimbal axis to be locked, so that the wheel cannot pitch. 26. This outer gimbal possesses one degree of rotational freedom and its axis possesses none. 27. For accurate pointing special gimbal mounts were developed. 28. The word " lock " is misleading : no gimbal is restrained. 29. Another way to replace gimbals is to use fluid bearings or a flotation chamber. 30. However, Cardano did not invent the gimbal , nor did he claim to.