In many ways, American-born Sir Benjamin Thompson’s interests mirrored those of Jefferson and Franklin. This physicist, inventor, and historian who was created a count in Bavaria contributed to the scientific discussion that determined that heat was a form of motion. His research lead to practical applications—the Rumford fireplace, steam applications, the double boiler, a kitchen range, and a drip coffee pot. He also advocated the potato as a staple food in Europe. Jefferson placed the work in the category of “Technical Arts.”