DARPA Is Researching Quantized Inertia, a Theory Many Think Is Pseudoscience (vice.com)
dmoberhaus writes: DARPA just awarded a $1.3 million contract to an international team of researchers to study quantized inertia or QI. This is a controversial theory that many physicists think is pseudoscience, but according to the physicist that created it, QI may be the foundation for light-powered space travel that could open the door for interstellar travel. Motherboard looks at the fact and fiction of QI, its relationship to the 'impossible' EmDrive being developed by NASA and how these physicists are going to create experimental light-powered engines.
Quantized inertia (QI) is an alternative theory of inertia, a property of matter that describes an object's resistance to acceleration. QI was first proposed by University of Plymouth physicist Mike McCulloch in 2007, but it is still considered a fringe theory by many, if not most, physicists today. McCulloch has used the theory to explain galactic rotation speeds without the need for dark matter, but he believes it may one day provide the foundation for launching space vehicles without fuel. The DARPA grant will allow McCulloch and a team of collaborators from Germany and Spain to undertake a series of experiments that will apply QI in a laboratory setting for the first time.
Quantized inertia (QI) is an alternative theory of inertia, a property of matter that describes an object's resistance to acceleration. QI was first proposed by University of Plymouth physicist Mike McCulloch in 2007, but it is still considered a fringe theory by many, if not most, physicists today. McCulloch has used the theory to explain galactic rotation speeds without the need for dark matter, but he believes it may one day provide the foundation for launching space vehicles without fuel. The DARPA grant will allow McCulloch and a team of collaborators from Germany and Spain to undertake a series of experiments that will apply QI in a laboratory setting for the first time.
So this is the first time I've heard of Quantized Inertia, but isn't this how science works? Somebody proposes a theory, and then they test it to see if it's bunk or not? Has it been tested before? If not, then why label it pseudoscience? Because it disagrees with current theories? Ok, so test it and prove it wrong...
This is not to say we would be dropping loads of money on it, but $1.3 million is hardly that. DARPA is known for spending money on some wild ideas, but it is not known for just tossing money away. There is a key difference. If DARPA thinks there is a worth while shot that this research can lead to something value then good on them for taking a risk.
DARPA is well known for its high-risk, high-reward approach to innovation. I'm sure the program manager involved knows full well that QI probably doesn't exist, but he or she has enough esteem for the investigators it was determined a good investment, just in case it turns out to be real.
They could also be offering some life support to a research group they want to keep together, but doesn't have a clear project. This is done all the time.
...not anymore. The problem with QI is that it is based on Unruh radiation. This Unruh radiation is supposed to replace dark matter and responsible for the peculiar velocities of stars in spiral galaxies.
Now, here's a problem:
A precise extragalactic test of General Relativity
http://science.sciencemag.org/...
According to this study the rotational velocities of the stars are consistent with the bending of light around the galaxy. That means space-time is curved with the right amount which causes the velocities of the stars.
So, Unruh radiation cannot be responsible for these velocities since Unruh radiation is light and light cannot "bend" light. Actually, our current understanding is that nothing can "bend" light this way, only space-time curvature. This means there is something there which causes this "extra" space-time curvature (eg. dark matter).
I do not believe dark matter exists, but it won't be QI which solves these kind of problems.
Government cannot make man richer, but it can make him poorer. - Ludwig von Mises
It is sheer luck that Einstein's annus mirabilis was 1805 and not, what can I say... 1905.
Some of the scientists are skeptical, they want evidence. This, too, is the correct approach. Cynicism, which also arises, is not. The difference is that a cynic doesn't care about evidence or models, they're convinced of the outcome in advance.
Cynicism is the enemy of science. It's actually the enemy of many things, but in this case it is the enemy of science.
Skepticism is how we distinguish sounding good from being useful. It is essential.
QI sounds excellent, doesn't involve hyper-invisible particles and offers a simple explanation. But none of those mean it is right. As Fred Hoyle loved to point out, the only valid thing in science is prediction. You must predict and test with an eye to falsifying. Nothing else matters.
And it must continue to do so. So all of the indirect attempts to study dark matter via hot filaments of regular matter must produce results QI can explain as well or better. If dark matter produces more testable predictions that turn out correct, it is the more useful even if it is actually wrong.
I am not keen on MOND because, as with dark matter, there are galaxies which don't fit the model. Theories which only apply selectively or at weekends are probably wrong. However, QI has some interesting aspects and should be tested properly rather than cynically dismissed.
It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
It's ridiculous that climate change has become political.