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Unit Outline

Acknowledgements

All materials included in this unit are derived from content originated at the Open University.

Figures

Figure 5(a): reproduced by permission, IBM Research, Almaden Research Center;

Figure 5(b): NASA;

Figure 12: © Tate, London 2003;

Figure 10: National Gallery, London;

Figure 11: Musee de I'Annonciade, St. Tropez;

Figure 24: Worcester Art Museum;

Figure 33: Harvard-Smithsonian Center;

Figure 35: High Altitude Observatory, www.hao.ucar.edu.

Every effort has been made to contact copyright owners. If any have been inadvertently overlooked the publishers will be pleased to make the necessary arrangements at the first opportunity.