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 Longest Suspension Bridge. At the time of its construction in the 1930s, the Golden Gate Bridge was the longest suspension bridge in the world. It maintained this point of pride for nearly 25 years, until the Verrazano Narrows Bridge was built in New York in 1964.uring the construction of the Golden Gate Bridge, very few workmen's lives were lost. This is due to the fact that a huge safety net was installed under the bridge to catch workers who fell while on the job. This was a completely new endeavor, having in place such a large safety mechanism.