Thanks to potash, the history of fertilizer is tied up with the history of U.S. patents. In the late 1700s, the first U.S. patent was granted to Samuel Hopkins of Philadelphia. The patent was for a new and improved approach to producing potash and pearlash. Today, potash is a component of the fertilizers we use on U.S. crops.
Using lifelike and 3D materials to replicate a scene from the late 18th century, we created a Hopkins’ patent display for the AgroLiquid IQhub. This exhibit element allows visitors to observe the process that Hopkins would have used to make potash for fertilizer.
Informational text and a graphic of Hopkins’ actual patent tells visitors about the patent. Focused audio that can only be heard by visitors standing directly by the exhibit provides additional information about Hopkins and his patent.