Most cases of black stools are from eating black foods or iron supplements. The most common condition causing black stools is a bleeding ulcer. Black stools caused by blood indicate a problem in the upper digestive tract. Blood in the stool can be detected through a stool test.
Akashi-Kaikyo Bridge, Japan. The Akashi-Kaikyo Bridge, spanning the Akashi Strait, connects the city of Kobe and Awaji Island in Hyogo Prefecture. It is the world's longest suspension bridge, with its central span measuring 1,991m. Its made up of six lanes with a combined length of 3,911m.
When it opened in 1964, the Verrazano-Narrows Bridge was the world's longest suspension span. The ends of the bridge are at historic Fort Hamilton in Brooklyn and Fort Wadsworth in Staten Island, both of which guarded New York Harbor at the Narrows for over a century. The bridge was named after Giovanni da Verrazano, who, in 1524, was the first European explorer to sail into New York Harbor.