Fast-forward to 2016 to see how much the technology has changed: https://www.nist.gov/news-events/news/2016/09/meet-bob-pmls-second-primary-coordinate-measurin

Fast-forward to 2016 to see how much the technology has changed: https://www.nist.gov/news-events/news/2016/09/meet-bob-pmls-second-primary-coordinate-measuring-machine https://www.nist.gov/news-events/news/2016/09/meet-bob-pmls-...