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.
The Golden Gate Bridge was the longest suspension bridge in the world when it was completed. in 1937. (Copyright Lee Krystek, 2011). They said it couldn't be built. The strait that connects the Pacific Ocean with the San Francisco Bay is one of the most unforgiving stretches of water in the world.