A friend to the sciences
Carl Theodor was one of the enlightened monarchs of the 18th century and was a great patron of the sciences all his life. He was also interested in physical studies. In 1760, he had a physics cabinet set up in Mannheim Palace for the Jesuit priest Johann Jakob Hemmer (1733–1790). Here, Hemmer experimented with electrical charges and discharges following the example of Benjamin Franklin.