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.
1.1 Information and History of Golden Gate Bridge Golden Gate Bridge is a suspension bridge spanning across Golden Gate, the opening into the San Francisco Bay from the Pacific Ocean, shown in Fig. 1.1 . It is classified as suspension bridge because it has a fairly flat deck which is suspended by the hangers attached to the