The power to peer inside the human body was discovered by accident in November 1895 when a German physicist was experimenting with electrons in vacuum tubes Willhelm Röntgen had covered the tubes with black cardboard to stop light escaping, but noticed a shimmering coming from a screen a metre away. He waved his hand between the covered tube and the screen and saw the silhouette of his bones projected on to the screen. He had discovered a new type of radiation that could travel through seemingly opaque material Read more