John D. Kraus

John D. Kraus was a renowned American electrical engineer and physicist who made significant contributions to the fields of electromagnetism, antenna theory, and radio astronomy. His work had a profound impact on the development of radar technology during World War II, and he is also known for his research on cosmic microwave background radiation with Arno Penzias and Robert Wilson. Kraus's academic career was closely tied to Ohio State University, where he spent most of his life teaching and conducting research. He was also an Fellow of the American Academy of Arts and Sciences and a member of the National Academy of Engineering.

● Early Life and Education

John D. Kraus was born in Ann Arbor, Michigan, to a family of German-American descent. He grew up in Ohio and developed an interest in electronics and radio communication at an early age, inspired by the work of Guglielmo Marconi and Nikola Tesla. Kraus pursued his undergraduate degree in electrical engineering at Ohio State University, where he was influenced by the teachings of Arthur Compton and Karl Taylor Compton. He then moved to University of Michigan to earn his master's degree, working under the guidance of Leo Szilard and Enrico Fermi.

● Career

Kraus began his academic career as a research assistant at Ohio State University, working on ionospheric research with Lloyd Berkner and Merle Tuve. During World War II, he contributed to the development of radar technology at the Massachusetts Institute of Technology's Radiation Laboratory, alongside Ivan Getting and Louis Norden. After the war, Kraus returned to Ohio State University as a professor of electrical engineering, where he established the Radio Observatory and conducted research on radio astronomy with Karl Jansky and Grote Reber. His work also involved collaborations with National Radio Astronomy Observatory and Arecibo Observatory.

● Research and Contributions

Kraus's research focused on antenna theory, electromagnetic theory, and radio astronomy. He made significant contributions to the understanding of cosmic microwave background radiation, working with Arno Penzias and Robert Wilson to confirm the predictions of Ralph Alpher and George Gamow. Kraus also developed the Kraus antenna, a type of parabolic antenna used in radio telescopes, and worked on the design of Arecibo Observatory's radio telescope. His research involved collaborations with National Science Foundation, NASA, and European Space Agency.

● Awards and Honors

Kraus received numerous awards and honors for his contributions to electrical engineering and physics, including the National Medal of Science and the IEEE Edison Medal. He was also awarded the Gold Medal of the Royal Astronomical Society and the Karl G. Jansky Lectureship of the National Radio Astronomy Observatory. Kraus was elected a Fellow of the American Academy of Arts and Sciences and a member of the National Academy of Engineering, and he received honorary degrees from University of Michigan and Case Western Reserve University.

● Personal Life

Kraus was married to Vivian Kraus and had two children, John Kraus Jr. and Mary Kraus. He was an avid amateur radio operator and enjoyed hiking and photography in his free time. Kraus was also a member of the American Physical Society and the Institute of Electrical and Electronics Engineers, and he served on the advisory boards of National Science Foundation and NASA. Throughout his life, Kraus maintained close ties to Ohio State University, where he taught and conducted research for over four decades, and he was remembered as a dedicated educator and mentor by his students and colleagues, including Neil deGrasse Tyson and Kip Thorne. Category:American engineers