Australian astronomer and engineer who developed the first radio telescope and made significant contributions to radio astronomy, including the discovery of the first radio galaxy.
Wilbur Norman Christiansen, affectionately known as Chris, was a trailblazing Australian radio astronomer and electrical engineer who made groundbreaking contributions to the field of radio astronomy. He is best known for building the first grating array for scanning the sun at the radio astronomy field station at Potts Hill, New South Wales, and for his work on the Chris Cross Telescope.
Christiansen was born on August 9, 1913, in Elsternwick, Victoria, to Wilhelm Christiansen, a minister in the Congregational Church, and Ilma Clarice Christiansen, a music teacher. He was educated at Caulfield Grammar School from 1921 to 1930 and later attended the University of Melbourne, where he earned his Bachelor of Science (B.Sc.) in 1934, Master of Science (M.Sc.) in 1935, and Doctor of Science (D.Sc.) in 1953.
Christiansen's most notable contributions include:
Christiansen's work in radio astronomy has had a significant impact on our understanding of the universe. His pioneering efforts in building radio telescopes and arrays have paved the way for further research and discovery in the field. His contributions have also inspired future generations of scientists and engineers to pursue careers in radio astronomy.
Christiansen married Elsie Mary Hill in 1938 and had a son, Peter. During his lifetime, he was involved in various philanthropic activities, including supporting the University of Melbourne and the Institution of Engineers Australia.
In 1955, Christiansen was questioned before the Royal Commission on Espionage regarding his political orientation and potential connections to communist activities. However, he was ultimately cleared of any wrongdoing.
Christiansen's legacy in radio astronomy is significant, and his work has had a lasting impact on the field. He is remembered as a pioneer and a trailblazer who paved the way for future generations of scientists and engineers.
Born in 1913
Pioneering radio astronomer who developed radar technology during WWII and later discovered quasars, greatly advancing our understanding of the universe.
Born in 1918
A pioneering radio astronomer who made groundbreaking discoveries about the universe, including the detection of quasars and the mapping of the cosmic microwave background radiation.
Born in 1915
A renowned astronomer and science fiction author who proposed the steady state theory of the universe and coined the term "Big Bang", making significant contributions to our understanding of the cosmos.
