Sonar Scanners Discovered 8 Hotspots
In September 2014, researchers from the NOAA started their scanning process of the Golden Gate Bridge. They used a sonar scanner to check out the ocean floor there, and they discovered eight potential areas worth taking an extra look at.
They had their assumptions of what these locations could be, and they were right about assuming that four of them were shipwrecks. Having people dive down there might be quite dangerous, so, thanks to technology and innovation, they were able to come up with robots who can do the job.
