Topic
Medical imaging
4 questions tagged Medical imaging — spanning every one of the seven Ws.
whose
Whose discovery of X-rays transformed both physics and medicine?
Wilhelm Conrad Röntgen’s discovery of X-rays in 1895. He showed that invisible rays could pass through soft tissue and reveal bones.
PhysicsMedical imaging
how
How do x-rays pass through some materials but not others?
X-rays are absorbed more by dense materials and materials with higher atomic numbers, such as bone or metal. Softer tissues let more x-rays pass through.
PhysicsMedical imaging
when
When was the human brain first photographed by X-ray?
The first X-ray images of the human head were made in 1896, soon after Wilhelm Röntgen discovered X-rays.
Human BodyMedical Imaging
when
When was the first ultrasound image of a human fetus made?
Early fetal ultrasound images were made in the late 1950s, with routine medical use expanding in the 1960s and 1970s.
Human BodyMedical Imaging