Recent content by Ron G

Your question compares work done -- what work? The treadmill is an approximation of the hill climb but in so many ways is only a simplistic approximation. How shall we compare miles covered and elevation conquered against the number of revolutions of a rubber belt? However, we really are not...

*Vannay* is very close. His reference is correct. The p value has to do with hypothesis supporting the study; not, the probability of a false positive or a false negative. With the p<.0009, the null hypothesis is proven. Therefore, the theory is very highly correct. But, the data for the...

Oh , it really isn't that hard a study, if you are really interested. Take the links offered to get a start. Try to suspend your judgment regarding inconsistencies with your daily existence. I have been at cosmology and the Core Theory for about three and can understand within limits the...

"For comparing categorical data, χ2 test was performed." Your second post shows that the study was simply comparing categories and not continuous values such as "bacterial count" or "obesity index". However, the text you quoted was not clear that χ2 test was used for these particular...

Did @Addum give up and let @HelioGeo take over? We do seem to have strayed a little. @phinds has tried hard not to open the firehose and still give sensical answers even though the question is based on imprecise use of terms. Physics is a compendium of theories each of which have boundaries of...

Here in lies the evolution of choice. As technology becomes available all possible uses are investigated and judgements are made regarding both personal and societal benefit or potential harm. Just as important, however, are the choices seeming to have been taken away by the technology. Before...

There is an asymptotic limit to the speed of a spaceship because of the relative increase in total mass as you approach light speed. Any ship has mass and the active potential energy of an on-board fuel supply is capable of a fixed reactive force unit. Unless! We have something like the...

Total invisibility is not required at all. You have seen the demonstration where people were asked to count the number of people with black T-shirts in a video. Afterwards, they were asked if they saw anything unusual; usually no one saw anything out of the ordinary. What actually occurred...

For all such stories the thesis is that: first, there is something seriously wrong with the way things are (i.e. nature selection and all the problems created by uncontrolled reproduction -- both good and bad), and, second, a centralized top-down design and control system is better able to see...

F fills first; L prevents any flow reaching I from J because inlet to I is higher than outlet to L. J must fill before any tank above (A, B, or C). BUT ASSUMPTIONS ARE EVERYTHING. F fills first only if 1) all the pipes are the same diameter and of the same material, 2) the heights of all...

From the point of view of a non-scientist who was fortune to work a short time with the folks at NCDC, Asheville, NC, I was able to gradually come to the unavioble truth of climate change and its looming prospects. My work began as a liaison for the NC Arboretum and after retirement I...

My background is in operations research and process quality control (ISO 9000) Questions: 1. Help with representation algebra and Hamiltonian Transforms to Hilbert Space. 2. Why the particle position distribution is treated as a wave?

Hi, Old, retired guy, but still curious. Play WOT, Chopin, and attempting to work my way through Core Theory mathematics and the ontolgy implied. Currently need help with Hamiltonian Transform of Hilbert Space, and reason why particle position function is treated like a wave.