book security system and an automated issue desk makes it possible to use the 1000 workplaces anytime, day or night. Current and contemporary literature is freely accessible in four specialised reading rooms, each providing cross-linked, modern and well-equipped study and work stations as well as printers, scanners and copy machines. KIT Library North The research library at Campus North provides a large specialised book stock (especially reports and primary reports) on energy and nuclear energy. All literature is freely accessible to the user. Thirty modern workplaces, as well as printers, scanners, copy machines and cubicles for individual work are available. Further libraries at KIT Additional literature is located in two specialised reading rooms for chemistry and physics, as well as in the Library of the University of Applied Sciences at the Campus at Moltkestrasse, which is administrated by the KIT Library. The faculty of physics, the faculty of mathematics, the faculty of computer science, the faculty of architecture and the faculty of economics and management have their own libraries to supply students and researchers with topic-related literature. Notable people Professors Karl Ferdinand Braun (1850–1918), who developed the cathode ray tube in 1897, which is widely used in televisions; in 1909 he received the Nobel Prize for the invention Wolfgang Gaede (1878–1945), who founded vacuum technology Franz Grashof (1826–1893), who significantly contributed to the understanding of free convection; the Grashof Number was named after him Fritz Haber (1868–1934), who developed the high-pressure synthesis of ammonia in 1909 and won a Nobel Prize in Chemistry in 1918 Heinrich Hertz (1857–1894) discovered electromagnetic waves in 1887, which are the basis for radio transmission, and after whom the SI unit of frequency, hertz is named Karl Heun (1859–1929), who is known for his work on numerical integration and solutions to differential equations. He discovered the Heun method. Otto Lehmann (1855–1922), the founder of liquid crystal research Wilhelm Nusselt (1882–1957), the co-founder of technical thermodynamics Ferdinand Redtenbacher (1809–1863), founder of science-based mechanical engineering in Germany Roland Scholl (1865–1945), discovered coronene and contributed significantly to the field of organic chemistry in general Hermann Staudinger (1881–1965), who won the Nobel Prize in Chemistry in 1953 for his discoveries in the field of macromolecular chemistry Karl Steinbuch (1917–2005), a pioneer of computer science in Germany who coined the German term for the field, Informatik, and made early contributions to machine learning and artificial neural networks Julius Wess (1934–2007),