Month: September 2022

CONNECTEDNESS. “Turbulence and Spacetime Foam. We will show that there are deep similarities between the problem of quantum gravity and turbulence. The connection between these seemingly disparate fields is provided by the role of diffeomorphism symmetry in classical gravity and the volume preserving diffeomorphisms of classical fluid dynamics.” https://www.mdpi.com/1099-4300/21/11/1035/htm View in LinkedIn

MIND-BENDING. “Furthermore, in the case of irrotational fluids in three spatial dimensions, the equation for the fluctuations of the velocity potential can be written in a geometric form of a harmonic Laplace–Beltrami equation.” https://www.mdpi.com/1099-4300/21/11/1035/htm View in LinkedIn

CONSEQUENCES. “It is now obvious that a Kolmogorov-like scaling in turbulence has been obtained. Since the velocities play the role of the shifts, they describe how the metric fluctuates at the Planck scale. The implication is that at short distances, spacetime is a chaotic and stochastic fluid in a turbulent regime with the Kolmogorov length l.” https://www.mdpi.com/1099-4300/21/11/1035/htm View in LinkedIn

APPLICATION. “This interpretation of the Kolmogorov scaling in the quantum gravitational setting implies that the physics of turbulence may help us understand the quantum fluctuation phase of strong quantum gravity.” https://www.mdpi.com/1099-4300/21/11/1035/htm View in LinkedIn

BLACK HOLE COMPUTERS. “We have argued that the laws of physics that determine the precision with which the geometry of spacetime can be measured also limit the power of and the amount of information contained in black hole computers.” https://www.mdpi.com/1099-4300/21/11/1035/htm View in LinkedIn

NEW MODEL. “Furthermore, the physics of spacetime fluctuations also yields a(n arguably) successful dark energy model in terms of an effective positive cosmological constant (related to the Hubble parameter).” https://www.mdpi.com/1099-4300/21/11/1035/htm View in LinkedIn

“NATURE is the most powerful narcotic I've taken, and Purple Emperor should be declared illegal (Class A1).” (British naturalist, Matthew Oates, good friend for 60 years, personal communication). https://lnkd.in/eWESdTsC View in LinkedIn

The first spring violets in Girona, including the uncommonly seen white violet. The longer photoperiod is also engorging the reproductive readiness of the birds, who are entering an uproar of chorus. View in LinkedIn

TYING IT TOGETHER. “Then we show that gravitational thermodynamics/ entropic gravity arguments, generalized to a spacetime (like ours) with dark energy imitating a (positive) cosmological constant, lead to a dark matter model which relates dark energy, dark matter, and ordinary (baryonic) matter and is remarkably consistent with observations at both the galactic and cluster scales.” https://www.mdpi.com/1099-4300/21/11/1035/htm View in LinkedIn

UNITY OF NATURE. “Lastly we show that turbulence is intimately related to properties of spacetime foam in the gravitational context. These results spanning black holes, computers, space-time foam, dark energy, dark matter and turbulence are testimony to the unity of nature.” (Remarkable). https://www.mdpi.com/1099-4300/21/11/1035/htm View in LinkedIn