## Quantised Inertia

Quantised Inertia is a theory by Dr Mike McCulloch in which inertia is explained by an asymmetric Casimir effect between a Rindler horizon on one side of an accelerating object, and the cosmic horizon on the other side.

The asymmetry is caused by the difference in the Unruh radiation being produced at each of these horizons, resulting in a net force acting against the direction of acceleration. Unruh radiation is analogous to Hawking radiation at a black hole's event horizon. Although not proven to exist, there is some experimental evidence for it.

According to Dr McCulloch, QI solves some astronomical/cosmological puzzles like the galaxy rotation and wide binary problems, without the need for dark matter. It also promises a new form of propulsion - the Horizon Drive - which may enable us to reach Alpha Centauri within a human lifetime.

Mike McCulloch has written two books, a book about Quantised Inertia, and a sci-fi novel featuring the Horizon Drive (paid links):

, .#### Links

- Physics from the Edge - Mike McCulloch's blog
- About Quantised Inertia at QuantizedInertia.com
- Quantised Inertia at EverybodyWiki.com

### Notes

### QI is being tested in space!

IVO's Quantum Drive is in orbit, to be switched on soon. 🤞

Posted: 20th Jan 2024

### Quantised Inertia and Galaxy Rotation from Information Theory

Many astrophysical observations show that stars at the outer edges of galaxies orbit far too fast to be gravitationally...

Published: 31st Jul 2019

### Testing Newton/GR, MoND and quantised inertia on wide binaries

Wide binary stars are within the low-acceleration regime in which galactic rotation curves deviate from Newtonian or gen...

Published: 31st Jul 2019

### Galaxy rotations from quantised inertia and visible matter only

It is shown here that a model for inertial mass, called quantised inertia, or MiHsC (Modified inertia by a Hubble-scale...

Published: 14th Sep 2017

### Inertial mass from Unruh temperatures

It has been proposed that inertia can be explained as follows: when objects accelerate in one direction, a Rindler horiz...

Published: 26th May 2016

### Inertia from an asymmetric Casimir effect

The property of inertia has never been fully explained. A model for inertia (MiHsC or quantised inertia) has been sugges...

Published: 12th Feb 2013

### Modelling the Pioneer anomaly as modified inertia

This paper proposes an explanation for the Pioneer anomaly: an unexplained Sunward acceleration of 8.74 +/- 1.33 x 10^-1...

Published: 20th Dec 2006