Ball Bearings

Tech Tour Day Two: High Tech's Growing In The SooMichigan's oldest city dates back to the 1660s. Its most famous feature, locks that get freighters around treacherous rapids between Lake Superior and the Lake Michigan-Huron system, date back to the 1850s. But stay tuned. Sault Ste. Marie might just be famous for something else pretty soon, something at the farthest reaches of technology.