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 would remain the worldâs longest suspension bridge until it was surpassed, by 60 feet, by New York Cityâs Verrazano-Narrows Bridge, which opened in 1964. In February 1985, the 1 billionth car crossed the Golden Gate Bridge. Today, more than 41 million vehicles travel across the bridge each year.