A/Prof John Hartnett

Physics, Cosmology (Australia)


Dr John G. Hartnett received both his B.Sc. (hons) and his Ph.D. with distinction from the Department of Physics at the University of Western Australia (UWA). He is currently employed in the Institute for Photonics & Advanced Sensing, and the School of Physical Sciences, at the University of Adelaide, developing ultra-stable clocks. He has published more than 100 papers in peer- reviewed scientific journals and more than 100 conference papers.

John’s research interests include the development of ultra-stable cryocooled microwave oscillators based on a sapphire crystal, ultra-low-noise radar and ultra-stable optical cavities for advanced optical clocks.


Dr Hartnett was announced as the winner of the 2010 W.G. Cady award by IEEE Ultrasonics, Ferroelectrics and Frequency Control Society.

The W.G. Cady Award recognizes outstanding contributions in the fields of piezoelectric or other classical frequency control, selection and measurement and resonant sensor devices.

The citation reads: “for the construction of ultra-stable cryogenic sapphire dielectric resonator oscillators and promotion of their applications in the fields of frequency metrology and radio-astronomy.
The award will be presented during the 2010 IEEE International Frequency Control Symposium at Newport Beach, California in June.

The previous year’s winner was Sir Eric Ash.

See also It’s about time: Secular researchers agree: creationist helps develop the most precise clocks in the universe.



Ground-breaking cosmological papers for secular journals

Article on John’s own website re his interview in the film ‘The Principle’ (along with Laurence Krauss and others); clarifies that his evidence for galactocentrism is not to be confused with the producers’ geocentrism.

Articles for CMI

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