Time-nutters-- Didier Juges asked: > What does that do to the focussing properties > of the dish? ------------------------
I have seen several descriptions of how the dish needs to be shaped in order to develop the orbital time-delayed angular momentum signal and still achieve an integral focus point. I am not sure that I can describe it, but as I understand it, the dish is not just split and bent into a cork-screw, but that the surface of the dish is also continuously shaped so as to provide a good focus.... It is just that the signal striking parts of the dish which are increasingly displaced along the axis of the bore-sight are time delayed more or less with respect to other surfaces of the dish. The only way I can see for this to work is for the dish surface to deviate from a true parabolic shape incrementally as each particular area is displaced closer or further away from the focal point. It is a little hard to visualize and a lot harder to find the right words to adequately describe! Mike Baker ----------------------- _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
