User:Jonathan A Jones/Quantized inertia notes

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

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

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. 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. The results put strong limits on all proposed theories like quantized inertia.