G4v: An Engineering Approach to Gravitation - C. Mead - 4/21/2015
Why Physics Stack Exchange recommends it
Physics Stack Exchange askers and answerers link it as the primary source for Carver Mead's G4v theory when asking how it differs from general relativity, whether LIGO can test it, and what it says about dark energy.
Recommended by 0 people across 0 different months, 2015 to 2016.
What it is
A Caltech seminar in which Carver Mead, emeritus professor of engineering and applied science, presents G4v, an alternative formulation of gravitation built on an electromagnetism-style vector potential. It was given in the Caltech/JPL gravitational-wave research seminar series and includes a Q&A with the audience.
What people said
Cites Brad Cooper - Purpose Nation · 2015-11 · Physics Stack Exchange · on “G4v Gravity Theory: Why does this get rid of Dark Energy?”
Earlier this year, Carver Mead of CalTech published a paper which seems to be garnering a lot of attention: [LINK] [LINK] [LINK] I also watched the video of his talk at CalTech: [this video] The Q&A at the end of this talk seemed to indicate that he may be misapplying GR equations for tasks for which they may not have been designed or for which they need proper manipulation. The G4v theory claims, among other things, that it does away with the need for a Cosmological constant (which, based on the gravitational wave uses, I can understand) and also DOES AWAY with Dark Energy. It seems future LIGO experiments could provide supporting or refuting evidence for G4v. My Question: How/why does this theo
Cites jake mckenzie · 2015-12 · Physics Stack Exchange · on “Are capacitors and inductors mirror images of each other?”
I'm reading through my E&M textbook (Physics for Scientists and Engineers 3rd edition, Knight) and watching as many lectures on YouTube (Shankar, Pomerantz, Lewin, etc) to prepare for next quarter. I have one question as I don't want to learn a wrong concept. I've noticed when you charge a capacitor with a constant current you get a voltage slope. After watching Carver Mead talk on G4g [this video] , I later saw that for an inductor $V = L \frac{dI}{dt}$ . Which looks strikingly similar to the equation I've learned up to this point for capacitors, $I = C \frac{dV}{dt}$ . That's weird. If you charge a capacitor with a constant current you get a slope of the voltage, then do you get the slope of th
Cites James Bowery · 2016-02 · Physics Stack Exchange · on “G4v Gravitational Wave vs General Relativity vs LIGO Observation”
CalTech emeritus professor Carver Mead produced an alternative prediction, to General Relativity, for gravitation wave observation which he published last year in anticipation of LIGO observations. The " Opposite GR Prediction [this video] ": [LINK] Moreover, the LIGO experiment is designed in such a way that it very well could discriminate between GR's and G4v's predictions [this video] . [LINK] The LIGO observation of gravitional waves have now been made [LINK] . Were they of sufficient quality to discriminate between these (and possibly other) predictions, as the LIGO scientists had designed the experiment? Gravitational Waves in G4v [LINK] Carver Mead (Submitted on 16 Mar 2015) Gravitational coupl
Cites godot · 2016-02 · Physics Stack Exchange · on “G4v Gravity Theory: Why does this get rid of Dark Energy?”
Carver Mead's version of the G4V theory includes a 2nd order term in the equation for inertial momentum which is proportional to the integral of the velocity of all relativistic energy in the universe divided by its distance from the body of interest. The term is expressed as being proportional to the inertial vector potential. It provides a description of a mechanism which, if found to exist, would embody Mach's principle. Because of its sign, it would also tend to explain the currently unexplained expansion observed in macroscopic regions of the universe which is currently ascribed to "dark energy." It contains no "fudge factor" analogous to the intermittently-hypothesized cosmological con