Prompt
Generate a realistic image of Hendrik Casimir, a Dutch physicist, in a formal setting, possibly in a laboratory or with a subtle background that hints at his work in physics, such as equations or diagrams related to the Casimir effect or the Casimir operator; he should be middle-aged, reflecting his age during his most notable contributions, dressed in attire typical of a mid-20th-century academic or professional, with a thoughtful or engaged expression, to convey his intellectual contributions to the field of physics.
