Sphaera, Museum Newsletter Archive, Spring, 1998. Museum to Close for Building Work Loans from the Collection to National Museums Exhibition Update Orlando Furioso ‘Fire and Art’: Electrical Practice in the 18th Century The Birkeland Terrella ‘Lines of Faith: Instruments and Religious Practice in Islam’ A Theodolite and Sundial Attributable to Gaulterus Arsenius Sphere No. 7: A Planispheric Astrolabe by Regnerus Arsenius? Visit by Minister for Culture Delta Lecture: ‘The Ambassadors’ Flemish Instruments Research Seminars Museums Week Fractals Exhibition