NATIONAL PHYSICAL LABORATORY (C) CROWN COPYRIGHT / SCIENCE PHOTO LIBRARY NATIONAL PHYSICAL LABORATORY (C) CROWN COPYRIGHT / SCIENCE PHOTO LIBRARY
X-ray equipment. This equipment was used to improve industrial techniques in the early 20th century. X-ray analysis revealed that the hardness of steel was related to the size of the grains in the structure, for example. This allowed insight into how steels with different properties could be produced. Photographed at the National Physical Laboratory, Teddington, UK.
Model release not required. Property release not required.