The Babcock butterfat test, developed at the University of Wisconsin in 1890, transformed the US dairy industry and helped Wisconsin become the Dairy State.
A few nicks to the skin, a suction cup, and a syringe to draw your blood cured what ailed you in a mid-1800s Wisconsin doctor’s office.
The mid-eighteenth century equivalent of today’s GPS, this sundial compass would have guided French officers along maritime highways stretching from the Atlantic Ocean to the southern end of Lake Michigan.
These funny looking “whaleback” ships built in Superior, WI were specially designed for shipping on the Great Lakes. It’s a whale of a tale!
Built in 1895, this 40-inch refracting telescope in Williams Bay marks one of the birthplaces of modern astrophysics.