Recent content by Thinkor

You are using a very anti-conventional notation for a scalar. The latex-like notation that creates the quote above shows "\vec{v}^2## is a scalar".

Why do you have an arrow over v in the definition of proper time? You surely are not taking the square root of a vector, are you?

You stated "Given the state of the QFT, the event (according to the definition given by Misner-Thorne-Wheeler) completely specifies what happens there (i.e., in a small neighborhood of the event)" Didn't you mean "the quantum field" rather than "the QFT"? I suspect I am just nit-picking, but I...

The same problem arises even in Newtonian gravity doesn't it? If, for example, I am in free fall with an elevator passenger-space containing Einstein, from my point of view the elevator is not accelerating, but if I am on the Earth on the geodesic of the elevator, it may whack me on the head...

It is commonly said that if you lift an object above the Earth it gains potential energy equal to mgh (m=mass, g=gravitational acceleration, h=height), suggesting that the potential energy is in the lifted mass. This cannot be. Consider the case of two perfectly rigid spheres, isolated in...

Logunov's RTG is definitely a different theory than GR. You can get a good idea of how it differs by reading the one page preface and six page introduction. In the introduction, citing Hilbert, it is claimed "that GR in principle cannot have laws of energy-momentum and angular momentum ...

At the link https://archive.org/details/LogunovMestvirishviliTheRelativisticTheoryOfGravitation you will find The Relativistic Theory of Gravitation by Logunov and Mestvirishvili, translated into English. It is a difficult read, but more readable than many serious books on gravitation...

I will check them out. Thank you very much.

That sounds interesting. Do you have a reference that explains "chaotic attractors" and their connection to cognition? I've read some books and papers by prominent experts (e.g., Baars, Dehaene, Dennett, Crick & Koch) without coming across that concept.

I've been reading up on neurology lately and I'm mystified by pyramidal neurons. The pyramidal neurons in the prefrontal cortex, for example, have maybe 20,000 inputs through their dendritic trees and 1 output through the axon. The output is an action potential that always has the same...

I have been mystified by what exactly the Higgs field is, because reading some descriptions of it and listening to youtube videos, posted by people who seem to know what they're talking about, I heard contradictory things. Some say the Higgs field is composed of Higgs particles, others that...

Thanks for the comments, especially about google scholar, where I found the Carlip paper which cleared things up about Van Flandern's bad estimate of the speed of gravity. Apparently, at present, the speed of gravity just doesn't matter in application. No wonder Newton's theory works so well!

Although the speed of light is constant in GR, within coordinate spacetime the speed of light varies. For example, light travels more slowly near a black hole than in remote space. The same is theoretically true of the speed of gravity. But is there any supporting empirical evidence?

That's what I was assuming, wrongly. When I understand it, I'll post again.

What I wrote was "They have not successfully teleported true information. They have successfully created the same information in two places simultaneously." To "teleport quantum information" (not "true information") you need to create an entangled state. Nothing is really "moved" between...