I never saw the physical visitor, a conversation just started, first one sided as it seemed I would never get to talk. It felt as though the entity was very polite, well educated, a feeling of cleanliness ?He occupied most talk, stating how gullible humans have been over the years. Described flight of most UFO's and the observations one would have if/when encountering one.Silent...Unbelievable movement, with no curbs on speed, maneuverability and ability to build it's own environment even to a shield of sorts emitted as movement began .There seemed to be a chuckle as he explained a device which had two units both being hollow and made of solid gold (he joked, "Ever try to breathe gold? Then why would every human believe visitors who kept hauling off gold were doing so to "Fix" their environment"). One unit caused an enclosed (no noise) amount of mercury to be circulated clock wise while the other circulated counter clock wise. As the mercury speeds up more momentum keeps building in what is now a motionless gyro. Seemed pretty wise to keep moving parts to a minimum,.These units were mounted so as to be able to raise or lower, tilt in or out resulting in forward, up down or any combination needed. In the center was the power unit and as he never went into detail other than nuclear, I never asked once again. Sometimes it seemed as though I was not bright enough to carry my end of the conversation.I find it difficult even now to say all I saw or heard so long ago, and am afraid the message may go unused if I can't sit down with someone who would help pick the seeds planted on my head.