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User:Jonathan A Jones/Quantized inertia notes

< User:Jonathan A Jones

Quantized inertia (QI), previously known as the acronym MiHsC (Modified Inertia from a Hubble-scale Casimir effect),[1] is a hypothesis about the effect of Unruh radiation on inertial mass.[2][3] The concept was first proposed in 2007 by Mike McCulloch to explain the Pioneer anomaly,[4] and was subsequently claimed to explain galaxy rotation curves without dark matter.[5][6][7]

Quantized inertia has been criticized as being pseudoscience by astrophysicist Brian Koberlein,[8] while the Pioneer anomaly has been explained by the recoil of thermal radiation from the spacecraft's power source.[9]

In 2017 the United States, Defense Advanced Research Projects Agency (DARPA) provided $1.3M in funding for a four-year study which aims to investigate quantized inertia as an explanation for the EmDrive.[10][11] As part of the DARPA grant, a number of experimental tests in various configurations were performed at the Dresden University of Technology, which reported no thrust.[12] The results put strong limits on all proposed theories like quantized inertia.[13]

References

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  1. ^ Zyga, Lisa (18 September 2012). "Dark matter effect might be explained by modified way to calculate inertial mass". Phys.org. Retrieved 11 June 2021.
  2. ^ McCulloch, M. E. (March 2013). "Inertia from an asymmetric Casimir effect". EPL. 101 (5): 59001. arXiv:1302.2775. Bibcode:2013EL....10159001M. doi:10.1209/0295-5075/101/59001. S2CID 118357836.
  3. ^ "The Curious Link Between the Fly-By Anomaly and the "Impossible" EmDrive Thruster". MIT Technology Review. 20 April 2016. Retrieved 12 June 2021.
  4. ^ McCulloch, M. E. (21 March 2007). "Modelling the Pioneer anomaly as modified inertia" (PDF). Monthly Notices of the Royal Astronomical Society. 376 (1): 338–342. arXiv:astro-ph/0612599. Bibcode:2007MNRAS.376..338M. doi:10.1111/j.1365-2966.2007.11433.x. S2CID 5315184.{{cite journal}}: CS1 maint: unflagged free DOI (link)
  5. ^ McCulloch, M. E. (20 May 2010). "Minimum accelerations from quantised inertia". EPL. 90 (2): 29001. arXiv:1004.3303. Bibcode:2010EL.....9029001M. doi:10.1209/0295-5075/90/29001. S2CID 118335505.
  6. ^ McCulloch, M. E. (March 2017). "Low-acceleration dwarf galaxies as tests of quantised inertia". Astrophysics and Space Science. 362 (3): 57. arXiv:1703.01179. Bibcode:2017Ap&SS.362...57M. doi:10.1007/s10509-017-3039-6. S2CID 119437133.
  7. ^ McCulloch, M. E. (September 2017). "Galaxy rotations from quantised inertia and visible matter only". Astrophysics and Space Science. 362 (9): 149. arXiv:1709.04918. Bibcode:2017Ap&SS.362..149M. doi:10.1007/s10509-017-3128-6. S2CID 13665174.
  8. ^ Brian Koberlein (2017-02-15). "Quantized Inertia, Dark Matter, The EMDrive And How To Do Science Wrong". forbes.com.
  9. ^ "...and farewell to the Pioneer anomaly". Nature Physics. 3 September 2012. Retrieved 11 June 2021.
  10. ^ Alan Williams (2017-09-17). "Scientists receive $1.3 million to study new propulsion idea for spacecraft". plymouth.ac.uk.
  11. ^ Oberhaus, Daniel (2 October 2018). "DARPA Is Researching Quantized Inertia, a Theory Many Think Is Pseudoscience". Vice Media. Retrieved 11 June 2021.
  12. ^ Tajmar, Martin (2021-03-01). "Thrust Measurements and Evaluation of Asymmetric Infrared Laser Resonators for Space Propulsion". researchgate.net.
  13. ^ Hambling, David (11 September 2020). "The EmDrive Just Won't Die". Popular Mechanics. Retrieved 11 June 2021.
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