I've suggested (& published in 15 journal papers) a new theory called quantised inertia (or MiHsC) that assumes that inertia is caused by relativistic horizons damping quantum fields. It predicts galaxy rotation, cosmic acceleration & the emdrive without any dark stuff or adjustment.
My Plymouth University webpage is here, I've written a book called Physics from the Edge and I'm on twitter as @memcculloch

Saturday, 12 April 2014

Bringing MiHsC down to Earth

MiHsC has been developed mostly by looking at anomalies in space. The great advantage of space being that things are simpler there and the fundamental rules are more easily seen. Nevertheless, to convince other people, astronomical anomalies are not ideal. For example, I have shown that MiHsC predicts galaxy rotation without dark matter and without any 'tuning', unlike dark matter or MoND which do need tuning (see McCulloch, 2012). The 'theoretical inevitability' of MiHsC is a great advantage, but is not enough to persuade others to drop beloved theories. What is needed is an experiment in which I can show some control over the anomalous effect (hopefully) and thereby demonstrate MiHsC conclusively. Here is my best try so far at such an experiment:

Start with a disc made of a material with good tensile strength that can withstand cold, attached by an axle to a motor. Enclose the disc in a metal box, which ideally should be a cryostat (very cold) to suppress thermal accelerations. Suspend a test mass outside the box, but above the rim of the disc, where the mutual disc-mass acceleration should be maximum, and monitor its weight. Allow things to settle down thermally, then spin the disc very fast. There should be no 'normal' coupling between the disc and test mass, but there will suddenly be a large mutual acceleration between the test mass and the disc, the very long Unruh waves the test mass saw initially will shorten, and so a greater proportion of them will be 'allowed' by the Hubble-scale Casimir effect of MiHsC and so MiHsC predicts that the test mass will gain inertial mass. This means the test mass will become less sensitive to gravity, and this will show up as an apparent loss of weight. You may notice the similarity with the controversial Podkletnov experiment of course, though with the (I hope) advantage of MiHsC, I have simplified/redesigned it a little to accentuate the predicted anomaly.

To be specific, MiHsC predicts, for a disc 5cm in radius and at the latitude of Plymouth (latitude is important because of an initial acceleration only with respect to the fixed stars) that for spin rates of 3000 rpm, 100,000 rpm and 1,000,000 rpm the test mass will lose 0.0016%, 1.76% and 100% of its weight.


McCulloch M.E., 2012. Testing quantised inertia on galactic scales. Astrophysics and Space Science, 342, 575. link


Mathieu Avila said...

Hello Mike,

The simplicity and feasibility of this experiment makes it a really good candidate for validation (or the contrary) of MiHsC. Spinning at a speed between 3000 rpm and 100,000 rpm is accessible at a low cost (comparing this to the rotating speed of a entry-level hard-drive drive)

Have you been able to conduct it ? Can you provide the results, or a place where you published them ?



Mike McCulloch said...

A warm version of the experiment is now in progress :) I'll discuss it when the results are more solid..

David Taylor-Fuller said...

Have you seen this paper looks like what they are talking about should be at least partially related.

David Taylor-Fuller said...


Mike McCulloch said...

Thanks a lot. I don't like the hypotheses they introduce, but the experiments are very relevant and most of them I didn't know of. I knew of the Japanese experiment where they dropped spinning weights and saw changes in fall speed. Here are some of my notes on it:

Hayasaka et al. (1997) enclosed a spinning gyroscope in a capsule in freefall. They found that a gyro of radius 2.9 cm spinning at 18,000 rpm showed an decrease in its downwards acceleration of 0.00014g +/- 0.00007g (1 part in 7000). This is consistent with an increase in its inertial mass, which slows down its acceleration given the same applied force. MiHsC predicts a loss of weight of 0.000266g +/- 0.0000266g (where g is 9.8m/s^2, and the error comes from assuming a 10% error in the Hubble constant). These values are close but do not quite agree given the error bars. Also, the experimental result only showed an anomaly for right-spinning gyroscopes (an anticlockwise spin when looking from above).