Quoting Bob Marinelli <[email protected]>:
I guess this is the time to propose that, if possible, every Time Nut needs to visit Greenwich Observatory at least once :) -Bob
Returning today from London where, incidentlly, I had the opportunity to visist the Royal Observatory, I hope to have fulfilled my "religious duties" of the Meca pilgrimage. Let me say that I mostly did aprecite the Harrison´s clocks and the Airy's Meridian Transit Circle. One of the major problems of the conventional MTC instruments are the errors due to flexion of the telescope. To remove at least this difficulty the British astronomer R. d'E. Atkinson proposed in 1946 a new instrument where a flat tilting mirror between two horizontal fixed telescopes lying in the plane of the meridian, one at South and another at Nort, could observe any object on its superior culmination. This instrument is the rare (only three were ever built in the world) Mirror Meridian Transit Circle. Besides that at the Pulkovo Observatory, the only other which saw the first light is until today at the Astronomical Observatory of the University of Porto in Portugal. (English is not my mother tongue: please be indulgent...) Best regards, Antonio CT1TE _______________________________________________ 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.
