Results 21 to 30 of about 76,072 (261)

From Modified Newtonian Dynamics to Superfluid Vacuum Theory

open access: yesEntropy, 2022
Herein is a review of the essentials of Modified Newtonian Dynamics (MOND) versus dark matter models based on Superfluids for modeling galactic rotation curves. We review the successes and issues of both approaches.
Tony C. Scott
doaj   +1 more source

Radar time delays in the dynamic theory of gravity [PDF]

open access: yesSerbian Astronomical Journal, 2004
There is a new theory gravity called the dynamic theory, which is derived from thermodynamic principles in a five dimensional space, radar signals traveling times and delays are calculated for the major planets in the solar system, and compared to those ...
Haranas I.I.
doaj   +1 more source

What Would a Tree Say About Its Size?

open access: yesFrontiers in Ecology and Evolution, 2021
When developing theories, designing studies, and interpreting the results, researchers are influenced by their perception of tree size. For example, we may compare two trees of the same size belonging to different species, and attribute any differences ...
Markku Larjavaara
doaj   +1 more source

Formal statement of the special principle of relativity [PDF]

open access: yes, 2013
While there is a longstanding discussion about the interpretation of the extended, general principle of relativity, there seems to be a consensus that the special principle of relativity is absolutely clear and unproblematic.
Gomori, Marton, Szabo, Laszlo E.
core   +1 more source

Lorentzian theories vs. Einsteinian special relativity - a logico-empiricist reconstruction [PDF]

open access: yes, 2010
It is widely believed that the principal difference between Einstein's special relativity and its contemporary rival Lorentz-type theories was that while the Lorentz-type theories were also capable of “explaining away” the null result of the Michelson ...
László E. Szabó, Szabo, Laszlo E.
core   +1 more source

Relative and modified relative realizability

open access: yesAnnals of Pure and Applied Logic, 2002
The notion of relative realizability, originally due to Kleene and Vesley, has recently been studied in topos-theoretic terms by the first author of this paper together with \textit{S. Awodey} and \textit{D. S. Scott} [``Local realizability toposes and a modal logic for computability'', Math. Struct. Comput. Sci.
Lars Birkedal, Jaap van Oosten
openaire   +5 more sources

THEORETICAL AND PRACTICAL ASPECTS REGARDING THIRD PARTIES IN THE LIGHT OF CONTRACTS’ EFFECTS RELATIVITY PRINCIPLE [PDF]

open access: yesEconomica, 2021
The contract is the subject of civil law that creates the basic entity of the national and international economy, and the contracting process is the most important stage in economic affairs in general. Naturally producing effects between the parties,
Ludmila BELIBAN-RAȚOI
doaj  

Relativity and the metrology of time [PDF]

open access: yes, 1997
PhDThe motivation for this work is two-fold: the application of general relativity to the metrology of time on one hand (part II), and the use of the methods and technology of time metrology for tests of relativity on the other (part I).
Wolf, Peter
core   +4 more sources

Relativity without relativity [PDF]

open access: yesClassical and Quantum Gravity, 2002
We give a derivation of general relativity and the gauge principle that is novel in presupposing neither spacetime nor the relativity principle. We consider a class of actions defined on superspace with two key properties. The first is 3-coordinate invariance. This is the only postulated symmetry, and it leads to the standard momentum constraint.
Barbour, Julian   +2 more
openaire   +3 more sources

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