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An apparent paradox in Einstein's Special Theory of Relativity, known as a Thomas precession rotation in atomic physics, has been verified experimentally in a number of ways. However, somewhat surprisingly, it has not yet been demonstrated…

General Relativity and Quantum Cosmology · Physics 2020-07-30 Christian P. H. Salas

Sex is considered as an evolutionary paradox, since its evolutionary advantage does not necessarily overcome the two fold cost of sharing half of one's offspring's genome with another member of the population. Here we demonstrate that…

Populations and Evolution · Quantitative Biology 2015-05-13 Alexander Feigel , Avraham Englander , Assaf Engel

While paradoxical linkages famously violate the Chebyshev-Grubler-Kutzbach criterion by exhibiting unexpected mobility, we identify an opposing phenomenon: a class of linkages that appear mobile according to the same criterion, yet are in…

Physics and Society · Physics 2025-09-30 Nir Shvalb , Oded Medina

This article provides a popular, largely non-technical explanation of how large objects can behave classically while smaller objects behave quantum mechanically, based on the effect of the presence of cosmic expansion velocities in extended…

General Physics · Physics 2007-05-23 C. L. Herzenberg

Dualities offer new possibilities for relating fundamentality and emergence. In particular, as is the aim of this chapter to show, it may happen that the relations of fundamentality and emergence between dual theories are inverted. In other…

History and Philosophy of Physics · Physics 2019-06-18 Elena Castellani , Sebastian De Haro

We give an elementary statistical analysis of two High Performance Computing issues, processor cache mapping and network port mapping. In both cases we find that, as in the birthday paradox, random assignment leads to more frequent…

Hardware Architecture · Computer Science 2019-09-27 Victor Eijkhout , Margaret Myers , John McCalpin

We give an equivalent form of the Twin prime conjecture relating to a symmetric property that is observed for terms present in a certain sequence of arithmetic progressions defined for a pair of co-prime integers.

Number Theory · Mathematics 2026-03-10 Srikanth Cherukupally

We show in this note that Gibbs paradox arises not due to application of thermodynamic principles, whether classical or statistical or even quantum mechanical, but due to incorrect application of mathematics to the process of mixing of…

General Physics · Physics 2013-02-12 Radhakrishnamurty Padyala

In this paper I suggest a possible explanation for the asymmetry of time. In the case that I study, the dynamical laws and the boundary conditions are symmetric, but the behavior of time is not. The underlying mechanism is statistical and…

General Physics · Physics 2014-07-23 Martin Tamm

The phase of matter waves depends on proper time and is therefore susceptible to special-relativistic (kinematic) and gravitational (redshift) time dilation. Hence, it is conceivable that atom interferometers measure general-relativistic…

Some such as Dean (2014) suggest that Montague's paradox requires the necessitation rule, and that the use of the rule in such a context is contentious. But here, I show that the paradox arises independently of the necessitation rule. A…

Logic · Mathematics 2023-06-06 T. Parent

We compare the speed with which a sexual, respectively an asexual, population is able to respond to a biased selective pressure. Our model focuses on the Weismann hypothesis that the extra variation caused by crossing-over and recombination…

Condensed Matter · Physics 2007-05-23 Kerstin Holmstrom , Henrik Jeldtoft Jensen

We consider gravitational time dilation between stationary observers and present examples, which contradict the statement that "time slows down as gravity increases". We show furthermore that this statement cannot be true in general, if…

General Relativity and Quantum Cosmology · Physics 2021-02-25 Andrzej Okolow

The Ehrenfest paradox for a rotating ring is examined and a kinematic resolution, within the framework of the special theory of relativity, is presented. Two different ways by which a ring can be brought from rest to rotational motion,…

General Relativity and Quantum Cosmology · Physics 2024-01-25 Jitendra Kumar

The original Wigner's friend paradox is a gedankenexperiment involving an observer described by an external agent. The paradox highlights the tension between unitary evolution and collapse in quantum theory, and is sometimes taken as…

Quantum Physics · Physics 2021-10-22 Matteo Lostaglio , Joseph Bowles

Aging refers to the property of two-time correlation functions to decay very slowly on (at least) two time scales. This phenomenon has gained recent attention due to experimental observations of the history dependent relaxation behavior in…

Popular Physics · Physics 2008-02-03 Stefan Boettcher

Unravelling apparent paradoxes has proven to be a powerful tool for understanding the complexities of special relativity. In this paper, we focus upon one such paradox, namely Bell's spaceship paradox, examining the relative motion of two…

Classical Physics · Physics 2018-01-31 Geraint F. Lewis , Luke A. Barnes , Martin J. Sticka

Contrary to the informed consensus, time travel implies spontaneity (as distinct from chance) so that time travel can only be of the second kind.

General Physics · Physics 2011-07-22 C. K. Raju

Consider the framework of topological aggregation introduced by Chichilnisky (1980). We prove that in this framework the Twin Paradox and the No Show Paradox cannot be avoided. Anonymity and unanimity are not needed to obtain these results.

Computer Science and Game Theory · Computer Science 2016-08-29 Guillaume Chèze

Two Turing Machines may be able to answer questions about each other that they cannot answer about themselves.

Logic in Computer Science · Computer Science 2016-10-31 Eric Hehner