Archaeological dig reveals high-tech medieval instrument.

When the owners of a restaurant in the historic British city of Canterbury dug the foundations for an extension to their period property, they may have hoped to find an old coin or two. Instead, they unearthed a rare scientific instrument.

Read the story here.

Archaeological dig reveals high-tech medieval instrument.

When the owners of a restaurant in the historic British city of Canterbury dug the foundations for an extension to their period property, they may have hoped to find an old coin or two. Instead, they unearthed a rare scientific instrument.

Read the story here.