Snellen chart. A wall chart developed by a Dutch ophthalmologist Hermann Snellen in the 19th century, which is still used today to measure visual acuity. It consists of 11 lines of block letters of decreasing size, which are to be read at a distance of 6 metres (20 feet).
See bridge in maps. Pont de Normandie is a cable-stayed road bridge that crosses the river Seine and contect Le Havre to Honfleur in Normandy, in France. The bridge was designed by Michel Virlogeux. Construction began in 1988 and the bridge was opened in January 1995.
Leonardo da Vinci spent his final three years in Amboise in a chateau now housing a museum with models of his designs. ChÃ¢teau du Clos LucÃ© is a relatively small 15th-century palace in the Loire town Amboise. The chateau was the childhood home of King Francis I but much more famously the palace where Leonardo da Vinci spent his final three years as the guest of the king of France. Clos LucÃ© is a museum on the life and work of Leonardo da Vinci.