Shoe-fitting fluoroscopes were invented almost simultaneously in the United States and England. Milwaukee quickly became a center of the new technology.
In the late 1800s, the Silsby Company created the Steam Powered Pumper in New York. This technological advancement made the lives of firefighters everywhere easier. They no longer had to rely on bucket brigades to fight fires. This impacted communities all over the country, including in Berlin, Wisconsin.
By the mid-1930s, the Flakall Corporation was trying to build up a customer base for its machine, a version of the feed grinder initially designed and built by Clair Mathews. But, as it turned out, the machine would end up being more useful for snack food manufacturers than farmers.
The 40-inch refracting telescope at Yerkes Observatory in Williams Bay, Wisconsin, contains the world’s largest refracting lenses. Built in 1895, the telescope contains two lenses, one made of crown glass, and one made of flint glass. The lenses are each 40 inches in diameter, weigh 500 pounds, and have a 62-foot focal length. The telescope and observatory…
Intended to help customers get the perfect pair of shoes, X-Ray shoe fitting machines like this one from Sturgeon Bay were popular in the 1930s, 1940s and 1950s.
The Le Maire Sundial is a rare example of a mid-18th century French sundial (cadran solaire) compass (boussole). It was found near Green Bay in 1902 by a local antiquities collector, Frank Duchateau. The sundial is broken, missing its glass compass cover as well as the back of its gnomon holder. Located on the front surface,…