Vocation : Engineer : Mechanical

Wilhelm Conrad Röntgen (; German pronunciation: [ˈvɪlhɛlm ˈʁœntɡən] ; 27 March 1845 – 10 February 1923) was a German mechanical engineer and physicist, who, on 8 November 1895, produced and detected electromagnetic radiation in a wavelength range known as X-rays or Röntgen rays, an achievement that earned him the inaugural Nobel Prize in Physics in 1901. In honour of Röntgen's accomplishments, in 2004 the International Union of Pure and Applied Chemistry (IUPAC) named element 111, roentgenium, a radioactive element with multiple unstable isotopes, after him. The unit of measurement roentgen was also named after him.

Sir Hans Adolf Krebs, FRS (, German: [hans ˈʔaːdɔlf ˈkʁeːps] ; 25 August 1900 – 22 November 1981) was a German-British biologist, physician and biochemist. He was a pioneer scientist in the study of cellular respiration, a biochemical process in living cells that extracts energy from food and oxygen and makes it available to drive the processes of life. He is best known for his discoveries of two important sequences of chemical reactions that take place in the cells of nearly all organisms, including humans, other than anaerobic microorganisms, namely the citric acid cycle and the urea cycle. The former, often eponymously known as the "Krebs cycle", is the sequence of metabolic reactions that allows cells of oxygen-respiring organisms to obtain far more ATP from the food they consume than anaerobic processes such as glycolysis can supply; and its discovery earned Krebs a Nobel Prize in Physiology or Medicine in 1953. With Hans Kornberg, he also discovered the glyoxylate cycle, a slight variation of the citric acid cycle found in plants, bacteria, protists, and fungi.
Krebs died in 1981 in Oxford, where he had spent 13 years of his career from 1954 until his retirement in 1967 at the University of Oxford.

Charles Morrell Jordan (October 21, 1927 – December 9, 2010) was an American automotive designer, born in Whittier, California.Jordan is widely known for his work on the 1959-1960 Cadillac Eldorado and the 1992 Cadillac Seville STS — and his role as vice president of design for General Motors from 1986 to 1992.

Gerd Stieler von Heydekampf (5 January 1905 – 25 January 1983) was an engineer who became a leading figure in the German automobile industry during the 1950s and 1960s. He joined NSU in 1948, becoming the company's chairman in 1953. Following the takeover of the company by Volkswagen, he stayed on as chairman of the new conglomerate's Audi-NSU division till 31 March 1971 when he retired following a heart attack.

Gordon Wagner (1915–1987) was an American artist. He was born and raised in Redondo Beach, California.
Wagner became an orphan at a young age. He received a degree from the University of California, Los Angeles. He worked in the Aerospace industry as a mechanical engineer.

Charles Paul Émile Hugot (1904–1993), known as Émile Hugot was a sugar technologist, manager of sugar factories and he wrote the standard text on engineering in sugar factories.

Keith Walton Tantlinger (March 22, 1919 – August 27, 2011) was a mechanical engineer and inventor. As Vice President of Engineering at the Fruehauf Trailer Corporation his inventions played a major role in containerization. Working with a Fruehauf customer, Malcom McLean, they spearheaded the container ship revolution in the 1950s, Tantlinger developed much of the early technology that made modern container shipping possible while at Fruehauf. After its initial order of containers from Brown Trailer, Sea-Land switched to containers made by the Strick division of the Fruehauf Trailer Company. Fruehauf had been one of the dominant players in building truck bodies and trailers for a long time, and, as already described, had previously innovated in the design and construction of the early commercial semi-trailers. President Roy Fruehauf was impressed with the idea of containerization, so in addition to manufacturing containers for Sea-Land his company agreed to make the trailer chassis that were needed, and also to provide financing to Sea-Land for the purchase of these containers and chassis.
In 1958 Tantlinger left Sea-Land and became chief engineer at Fruehauf, where he continued to work with containers. More importantly, over the years he played a key role in the process of container standardization, working extensively on a committee of the American Standards Association (ASA) and later being critically involved with the ISO's efforts. His designs included the corner casting and Twistlock systems found on every intermodal container, the spreader bar for automatic securing of containers lifted on and off ships, and the ship-shore container transfer apparatus for the first cellular container ship. In the course of his professional career, Tantlinger was granted 79 United States patents, all related to transportation equipment. Many of his patents related to commercial highway freight trailers and transit buses.

Clarence Walton Musser (April 5, 1909, Mount Joy, Pennsylvania – June 8, 1998) inventor of strain wave gearing and also credited with over 250 major inventions and discoveries.Some of his inventions were the Army recoilless rifle, aircraft personnel catapults, instrumentation for underwater detonation testing. His varied career includes experience in many diverse fields. He was research advisor to the Department of Defense for 15 years. With other industrial and government organizations, he has served as chief engineer, director of research, and consultant. He held professional engineering licences in Pennsylvania and Massachusetts. As a research adviser to United Shoe Machinery Corp., he explored nonrigid-body mechanics, using controlled deflection as an operating medium. In 1957 Musser announced invention of strain wave gearing also known as harmonic gearing (U. S. patent 2,906,143). He is also the inventor of first fluidic stepper actuators

Abraham "Abe" Silverstein (September 15, 1908 – June 1, 2001) was an American engineer who played an important part in the United States space program. He was a longtime manager at the National Aeronautics and Space Administration (NASA) and its predecessor, the National Advisory Committee for Aeronautics (NACA). He was instrumental in the planning of the Apollo, Ranger, Mariner, Surveyor, and Voyager missions, and named the Apollo program after the Greek and Roman God.