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Other Activities

Mark Bailey delivered the prestigious Harold Jeffreys Lecture, ``The Origin of Comets and the Oort Cloud'', at the Royal Astronomical Society on 12 March 2004, and played a leading role in arrangements for the first joint meeting of the Astronomical Science Group of Ireland (ASGI) and the Institute of Physics in Ireland (IoPI), ``Astronomy and Astrophysics in Ireland''. This was the largest astronomical conference ever held in Armagh, with nearly 140 registered participants.

Mark Bailey, David Asher and Apostolos Christou together created and supervised the construction of the Human Orrery (see Section 5.4), the first large outdoor exhibit designed to show with precision the elliptical orbits and changing relative positions of the planets and other solar system bodies versus time.