[ExI] EmDrive again

[Giulio Prisco]

MIT Technology Review reports that a recent article by Plymouth
University physicist Mike McCulloch proposes an explanation for the
anomalous EmDrive experimental results. According to the physicist,
inertia is the pressure the Unruh radiation predicted by general
relativity exerts on an accelerating body, and must be quantized at
small accelerations. McCulloch claims that the EmDrive effect can be
predicted by assuming that the photons in the EmDrive cavity have
inertial mass caused by Unruh radiation, whose wavelengths must fit
exactly within the cavity.

McCulloch derives the order of magnitude of current experimental
results and proposes new tests to validate or invalidate his theory.
As it always happens when the EmDrive is mentioned, the MIT Technology
Review article is already triggering strong emotional reactions and
mass hysteria from both enthusiasts and skeptics. McCulloch's
theoretical framework is explained in the book "Physics from the Edge
- A New Cosmological Model for Inertia."

"It is a prediction that was first made in the early 1970s by a
brilliant young Canadian physicist, Bill Unruh, who was then barely
out of graduate school. What he found was that, as a result of quantum
theory and relativity, there must be a new effect, never observed but
still universal, whereby anything which is accelerated must experience
itself to be embedded in a hot gas of photons, the temperature of
which is proportional to the acceleration." - Lee Smolin, "Three Roads
to Quantum Gravity."

https://www.technologyreview.com/s/601299/the-curious-link-between-the-fly-by-anomaly-and-the-impossible-emdrive-thruster/