Prompt
Generate a realistic image of Karl Wirtz, a middle-aged German physicist from the mid-20th century, dressed in formal attire, likely a suit and tie, with a subtle background that hints at his work in nuclear physics, such as a laboratory setting or a library with books and papers related to physics; incorporate elements that reflect his involvement in the German nuclear energy project, such as a subtle nuclear symbol or a book related to the Uranverein; the style should be a realistic portrait, capturing his expression and demeanor as a serious and accomplished physicist.