. Earth, sky, and sea . FiG. 21. Graph of variations of hinge moment with angle of opening of door been reduced to y by the inclination of the axis, one can easily operate the door with one hand. The position of the door, open or closed, must be made secure, so that the oscillations of the bathyscaphe will not make it move. When the door is closed it must be held firmly in its seating for the first fathoms of the dive. Afterwards the pressure of the water will keep it in its conical seating. We have, in the Trieste, one single small screw that can be operated without difficulty with one
. Earth, sky, and sea . FiG. 21. Graph of variations of hinge moment with angle of opening of door been reduced to y by the inclination of the axis, one can easily operate the door with one hand. The position of the door, open or closed, must be made secure, so that the oscillations of the bathyscaphe will not make it move. When the door is closed it must be held firmly in its seating for the first fathoms of the dive. Afterwards the pressure of the water will keep it in its conical seating. We have, in the Trieste, one single small screw that can be operated without difficulty with one hand, which serves to keep the door closed. [ 168]
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