According to Alemi and Stevenson, in models of the early solar system it is nearly impossible for Venus to avoid a big hit. Most likely, Venus was slammed early on and gained a moon from the resulting debris.
The Golden Gate Bridge was built simply, to connect San Francisco to Marin County. The San Francisco Bay has rough currents and ferries were the only way to get across. Building a bridge just made it easier.
Opened in 1937. 1  The Golden Gate bridge is located in San Francisco and is perhaps the cityâs most famous attraction. 2  Built in the 19th Century, this symbol of British capital is close to the Tower of London, from which it takes its name. 3  The Brooklyn Bridge is one of the oldest suspension bridges in the United States.