Explore the fascinating history and challenges of the Greenwich Time Ball in this lecture by Anna Rolls, Curator of the Clockmakers Museum in London. Delve into the intricacies of Flamsteed House and discover the various problems that have plagued this iconic timekeeping device over the years. Learn about the restoration efforts, failures, and disasters that have shaped its story. Examine the technical aspects, including the installation of an anemometer, the camera obscura, and the millennium ball drop. Gain insights into the timing control mechanisms, magnetic brake, and scaffolding used in its operation. Understand the significance of the Greenwich Time Ball in the context of National Science Week and its role in timekeeping history.