"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 |
| 6768444 | Method of interference suppression in a radar system The invention relates to a method of interference suppression in a radar system (10) and also to a system (10) operating according to the method. The system (10) incorporates a first antenna (40) and associated electronic circuits for emitting i... | 07/27/2004 |
| 6681700 | Capacitive fuses for missiles In a capacitive fuse for a missile interference due to discharge of static electricity from transmitter or receiver electrodes or to movement of the missile's control surfaces in flight is reduced by using as a receiver input signal the difference between... | 01/27/2004 |
| 6618002 | HF radar A HF radar uses the same antenna array (414, 424, 424', 424') for both transmission (TX) and reception (RX). Each radiating element of the array may be driven by its own local transmitter and may have its own local receiver, both being connected to a cent... | 09/09/2003 |