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.
With a main span of 3500 feet, the George Washington Bridge overtook Detroitâs Ambassador Bridge in 1931 as the longest suspension bridge in the world, beating it by 1650 feet. Its title lasted until 1937, when the Golden Gate Bridge opened in San Francisco.