Quotables
"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 5122028 | Skip A skip to be suspended in a mine shaft has a discharge opening at the lower end region of a chamber defined by a skip body. A door closes the opening and can open to discharge material from the chamber. Door operating members at opposite sides of the body... | 06/16/1992 |
| 4044894 | Load tilting magnetic lift Apparatus for the magnetically lifting and tilting an elongate load, e.g., a steel beam, is disclosed. The apparatus comprises a plurality of electromagnets supported in a corresponding plurality of yokes in a linear array along a beam structure. On each ... | 08/30/1977 |
