Every year, thousands of people come to the Royal Observatory Greenwich to have their photograph taken on the Prime Meridian Line - Longitude 0 Degrees - as they stand in the Eastern and Western Hemispheres at the same time. But what is the purpose and history of the Greenwich Meridian?
Thousands of years before any of our modern methods of transport were invented man traveled by boat on the water. This book chronicles our nautical heritage for the last one hundred or so years and features everything from tall ships to small ships, working boats and lifeboats.
Cities are responsible for three-quarters of the world s energy consumption. If we are to reduce our demands on the planet s resources how can we make our urban areas more energy efficient? One way is to refit existing buildings with more thermally efficient building materials. But such retrofitting ...