World renowned physicist
John was born on March 24th, 1952 in Australia. In 1973 he graduated with a B.S. degree with honors in physics. He later receive his Phd with distinction in physics from the University of Western Australia. He’s now retired but was an Australian Research Council Discovery Outstanding Researcher Award (DORA) fellow at the University of Adelaide, South Australia. He started a small startup “Cryoclock” for which he is a director.
He’s published over 200 papers in scientific journals, book chapters and conference proceedings. His main interests are in the development of ultra-stable cryogenically cooled microwave oscillators based upon the sapphire crystal, ultra low-noise radar, tests of fundamental theories of physics, and cosmological implications.
This His Sapphire Clock technology is claimed to be the most stable in existence at microwave frequencies and is now commercially available. See Cryoclock.com. His Sapphire Clock was used in ground based tests for the European Space Agency’s Atomic Clock Ensemble in Space (ACES) mission to be deployed on the ISS.
He is one of the world’s leading experts in the measurement of time. He is the winner of the 2010 W.G. Cady award, given by the IEEE Ultrasonics, Ferroelectrics and Frequency Control Society. This award recognizes outstanding contributions in the fields of piezoelectric or other classical frequency control, selection and measurement and resonant sensor devices. The award 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.
His name is Dr. John Hartnett.
- Wang, J.G. Hartnett, “A Vibration Free Cryostat Using Pulse Tube Cryocooler,” Cryogenics, 50, 336-341, 2010
J.G. Hartnett, N.R. Nand, C. Wang, J-M. Le Floch, “Cryogenic Sapphire Oscillator using a low-vibration design pulse-tube cryocooler: First results,” IEEE Trans on UFFC, 57, 5, 1034-1038, 2010
J.G. Hartnett, N.R. Nand, “Ultra-low vibration pulse-tube cryocooler stabilized cryogenic sapphire oscillator with 10-16 fractional frequency stability,” IEEE Trans on MTT, 58, 12, 3580-3586, 2010
J.G. Hartnett and A.N. Luiten, “Colloquium: Comparison of astrophysical and terrestrial frequency standards,” Rev. Mod. Phys., 83, 1-9, 2011
- Doeleman, Tao Mai, A.E.E. Rogers, J.G. Hartnett, M.E. Tobar, N. Nand, “Adapting a cryogenic sapphire oscillator for very long baseline interferometry,” Publications of the Astronomical Society of the Pacific, 123, 582-595, 2011
N.R. Nand, J.G. Hartnett, E.N. Ivanov, G. Santarelli, “Ultra-stable very-low-phase-noise signal source for Very Long Baseline Interferometry using a cryocooled sapphire oscillator,” IEEE Trans on MTT, 59, 11, 2978 – 2986, 2011
J.G. Hartnett, N.R. Nand and C. Lu, “Ultra-low-phase-noise cryocooled microwave dielectric-sapphire-resonator oscillators,” Appl. Phys. Lett., 100, 183501, 2012
Rioja, R. Dodson, Y. Asaki, J. Hartnett, S. Tingay, “The Impact of Frequency Standards on Coherence in VLBI at the Highest Frequencies,” Astron. J, 144, 121-131, 2012.
My Researcher ID https://publons.com/researcher/2826895/john-g-hartnett/publications/
My Orcid page https://orcid.org/0000-0002-0718-1727
By the way, he’s also a Christian and a young earth creationist (YEC). He has written the following books:
“Dismantling the Big Bang”
“Starlight, Time and the New Physics”
His website is at http://biblescienceforum.com
He has suggested that Carmeli’s very novel ‘cosmological special relativity’ model might explain how we can see distant starlight on a 6,000 year old earth. Carmeli’s theory does away with the need for dark matter, dark energy and the universe’s inflationary period. As such, it explains many of the things that the standard Big Bang theory cannot. However, Dr Hartnett now believes that the answer to the biblical creationist starlight travel time problem may be found in another forgotten aspect of Einstein’s physics – the conventionality thesis. See the Journal of Creation or biblescienceforum.com for more on that.
I predict you’ll hear a lot more of Dr. Hartnett in the near future. So much for the oft-repeated claim that creationists are not real scientists or that they don’t publish in scientific journals.
For His Kingdom,