The National Memorial Arboretum at Alrewas, near Lichfield, has unveiled a human sundial memorial. Using it, the visitor's own shadow will indicate the time. It commemorates the loss of the 2,536 ships of the Merchant Navy and the 32,000 merchant seamen who died in the Second World War. The sundial, representing a chart of the world, was commissioned by the Honourable Company of Master Mariners. Meridian As well as paying tribute to the mariners, the sundial also marks the 75th anniversary of the founding of the company. The large stone chart is designed with the months of the year engraved along the Greenwich Meridian. The shadow of anyone standing at the appropriate place will be cast towards a line of hour marks and will indicated the time. The sundial lies in front of a grove of oak trees and is surrounded by a garden of rosemary, lavender and roses. Arboretum staff say it is already proving to be a popular attraction.