Alexander Friedmann and the origins of modern cosmology

Belenkiy, Ari

doi:10.1063/pt.3.1750

Cited by 16 publications

(15 citation statements)

References 10 publications

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“…From a more general and wider perspective, we shoud add that several other scientists, as Carl Wirtz, Ludwik Silberstein, Knut Lundmark, or Willem de Sitter himself, had been actually looking for a redshift-distance relation of a similar kind, which could fit into the context of de Sitter's model [37][38][39] (see also [22]). As reported in [49][50][51], the first theoretical explanation capable of accounting for the Slipher's redshifts as Doppler effect was suggested by Alexander Friedmann in 1922 [52].…”

Section: The Expanding Universementioning

confidence: 97%

“…Had the creator of General Relativity, or maybe also W. de Sitter (who had himself already discovered an expanding solution, as early as 1917, although for a massless universe) realized these implications, they could have predicted the expansion of the universe from purely theoretical grounds, before astronomical evidence was there. Belenkiy sustains the opinion that, had this been the case, Einstein himself together with Friedmann and Slipher could had been solid candidates for a Nobel Prize in Physics [49][50][51].…”

Section: The Expanding Universementioning

confidence: 99%

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Reasons in favor of a Hubble-Lemaître-Slipher's (HLS) Law

Elizalde¹

2019

Preprint

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Based on historical facts, revisited from a present-day perspective, and on the documented opinions of the scientists involved in the discovery themselves, strong arguments are given in favor of a proposal to include prominent astronomer Vesto Slipher to the suggested addition of Georges Lemaître's name to Hubble's law on the expansion of the Universe, and thus eventually call it Hubble-Lemaître-Slipher's (HLS) law.

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Section: The Expanding Universementioning

confidence: 97%

Section: The Expanding Universementioning

confidence: 99%

Reasons in favor of a Hubble-Lemaître-Slipher's (HLS) Law

Elizalde¹

2019

Preprint

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“…Alexander Friedmann is one of the most prominent Figures within the History of Gravity, one Physicists who shapes the foundations of modern Cosmology (Belenkyi, 2012). Alexander Friedmann proposes as a true pioneer a totally novel solution for the field equations developed by Einstein, "entering to waters no one yet has crossed".…”

Section: The Cosmological Work Of Alexander Friedmannmentioning

confidence: 99%

A Brief Tour Into the History of Gravity: From Democritus to Einstein

Papaspirou¹

2013

American Journal of Space Science

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The History of Gravity encompasses many different versions of the idea of the Gravitational interaction, which starts already from the Presocratic Atomists, continues to the doctrines of the Platonic and Neoplatonic School and of the Aristotelian School, passes through the works of John Philoponus and John Bouridan and reaches the visions of Johannes Kepler and Galileo Galilei. Then, the major breakthrough in the Theory of Motion and the Theory of Gravity takes place within the realm of Isaac Newton's most famous Principia and of the work of Gottfried Leibniz, continues with the contributions of the Postnewtonians, such as Leonhard Euler, reaches the epoch of its modern formulation by Ernst Mach and other Giants of Physics and Philosophy of this epoch, enriches its structure within the work of Henry Poincare and finally culminates within the work of Albert Einstein, with the formulation of the Theory of Special Relativity and of General Relativity at the begin of the 20th century. The evolution of the Theory of General Relativity still continues up to our times, is rich in forms it takes and full of ideas of theoretical strength. Many fundamental concepts of the Epistemology and the History of Physics appear in the study of the Theory of Gravity, such as the notions of Space, of Time, of Motion, of Mass, in its Inertial, Active Gravitational and Passive Gravitational form, of the Inertial system of reference, of the Force, of the Field, of the Riemannian Geometry and of the Field Equations. These primary fundamental theoretical and structural notions appearing each time in the corresponding Theories of Gravity and within the various Paradigms of the Gravitational interaction. We shall refer briefly to the History of Gravity, mentioning only a few landmarks or great personalities which shaped these fundamental physical and epistemological notions.

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“…Recent articles in non-specialized physics journals have discussed some of the complexities associated with modeling cosmology [5][6][7] , but these articles only considered specific scenarios from the small subset of cosmological models that permit exact analytical solutions. Moreover, it would be very difficult for a non-cosmologist to recreate or extend those results.…”

Section: Modeling Cosmologymentioning

confidence: 99%

“…Clearly, these results are of intrinsic interest and should be understood by people outside the field of cosmology. In fact, several recent articles in nonspecialist journals have discussed these latest findings [5][6][7] . Unfortunately, resources have not existed that allow the broader physics community (non-cosmologists) to appreciate how cosmological observations inform cosmological models, ultimately leading to these new insights.…”

Section: Introductionmentioning

confidence: 99%

Modern cosmology: Interactive computer simulations that use recent observational surveys

Moldenhauer

Engelhardt

Stone

et al. 2013

American Journal of Physics

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We present a collection of new, open-source computational tools for numerically modeling recent large-scale observational data sets using modern cosmology theory. Specifically, these tools will allow both students and researchers to constrain the parameter values in competitive cosmological models, thereby discovering both the accelerated expansion of the universe and its composition (e.g., dark matter and dark energy). These programs have several features to help the non-cosmologist build an understanding of cosmological models and their relation to observational data: a built-in collection of several real observational data sets; sliders to vary the values of the parameters that define different cosmological models; real-time plotting of simulated data; and χ 2 calculations of the goodness of fit for each choice of parameters (theory) and observational data (experiment). The current list of built-in observations includes several recent supernovae Type Ia surveys, baryon acoustic oscillations, the cosmic microwave background radiation, gamma-ray bursts, and measurements of the Hubble parameter. In this article, we discuss specific results for testing cosmological models using these observational data. These programs can be found at http://www.compadre.org/osp/ items/detail.cfm?ID=12406.

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Alexander Friedmann and the origins of modern cosmology

Abstract: Friedmann, who died young in 1925, deserves to be called the father of Big Bang cosmology. But his seminal contributions have been widely misrepresented and undervalued.

Cited by 16 publications

References 10 publications

Reasons in favor of a Hubble-Lemaître-Slipher's (HLS) Law

Reasons in favor of a Hubble-Lemaître-Slipher's (HLS) Law

A Brief Tour Into the History of Gravity: From Democritus to Einstein

Modern cosmology: Interactive computer simulations that use recent observational surveys

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Alexander Friedmann and the origins of modern cosmology

Abstract: Friedmann, who died young in 1925, deserves to be called the father of Big Bang cosmology. But his seminal contributions have been widely misrepresented and undervalued.

Cited by 16 publications

References 10 publications

Reasons in favor of a Hubble-Lema&icirc;tre-Slipher's (HLS) Law

Reasons in favor of a Hubble-Lema&icirc;tre-Slipher's (HLS) Law

A Brief Tour Into the History of Gravity: From Democritus to Einstein

Modern cosmology: Interactive computer simulations that use recent observational surveys

Contact Info

Product

Resources

About

Reasons in favor of a Hubble-Lemaître-Slipher's (HLS) Law

Reasons in favor of a Hubble-Lemaître-Slipher's (HLS) Law