The body of the car is then connected to the negative terminal of the battery, completing the circuit. There are virtually no return wires. This works as cars use a low voltage (12 V). If they used a higher voltage, this system could result in electric shock from touching the car body.
Not any more. The 4,200-foot long suspension span of the Golden Gate Bridge was the longest span in the world from the time of its construction in 1937 until New York City's Verrazano Narrows Bridge was opened on November 21, 1964.It is 60 feet longer than the Golden Gate Bridge.The Verrazano was the longest single span bridge until July 17, 1981, when the Humber Bridge in England, spanning the Humber River, was opened for traffic with a main span of 4,626 feet.ot any more. The 4,200-foot long suspension span of the Golden Gate Bridge was the longest span in the world from the time of its construction in 1937 until New York City's Verrazano Narrows Bridge was opened on November 21, 1964.
The 4,200-foot long suspension span of the Golden Gate Bridge was the longest span in the world from the time of its construction in 1937 until New York City's Verrazano Narrows Bridge was opened on November 21, 1964.