The Ups and Downs of the Greenwich Time Ball

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.

Introduction
Anna Rolls introduction
Flamsteed House
History
Problems
The Restoration
The Failure
The Problems
Disaster
Initial issues
Anemometer installation
Camera obscura
The millennium ball drop
National Science Week
The Problem
Timing Control
Magnetic Brake
Scaffolding
The Sleeve