1878

 

The Zoroaster, commissioned and completed in 1878, is widely considered to be the world's first successful oil tanker. It was designed by Ludvig Nobel, who notably refused to patent any part of it, leading to the design being widely studied and duplicated around the world. The tanker was built in Gothemburg, Sweden and was intended to navigate the Caspian Sea, running between Baku, Azerbaijan and Astrakhan, Russia.

 

Water wheels have been used to power mills and pumps for centuries. However, the traditional water wheel was inefficient: water hitting a bucket would splash back against the next bucket, slowing the wheel. This is especially true when water is delivered to the buckets under very high pressure.

A 214-foot single-span covered wooden bridge, built above the cribs of stone in the AuSable River that served to break log jams and ice floes, collapsed during the winter of 1875 under the weight of a three-foot snowfall and high winds. The "Upper Bridge" (pictured) was built in its place.

This collection recognizes the inventive talents of John Moses Browning (1855-1926), a prolific and significant designer of sporting and military firearms, whose designs were known for simplicity, accuracy, and reliability. He held more than 128 patents covering 80 distinct firearms produced by Winchester, Remington, Colt, Fabrique Nationale, Savage, and General Motors (during wartime), among others.