Wilhelm Conrad Röntgen was a German physicist who is best known for his discovery of X-rays in 1895. X-rays are a form of electromagnetic radiation that can penetrate various materials, including the human body, and are used in various applications, particularly in medicine for diagnostic imaging. Röntgen’s discovery of X-rays had a profound impact on the fields of science and medicine and earned him the first Nobel Prize in Physics in 1901. X-rays have since become an essential tool in medical imaging, allowing doctors to visualize the internal structures of the human body without invasive procedures.