Relativistic mass and modern physics

Силагадзе, З. К.

doi:10.1139/cjp-2014-0257

Cited by 4 publications

(3 citation statements)

References 56 publications

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“…The phrase 'moving clocks slow down' is universally used and has been in common use for over a hundred years, and we realize that our suggestion not to use it, while correct, is not very realistic due to the 'intellectual inertia' [112] of the physics community. This intellectual inertia is well confirmed by Okun's unsuccessful struggle with outdated concept of relativistic mass [113,114]. Nevertheless, we decided to write this article, following an advice from the speech of Walter Kotschnig delivered at Smith College on November 8, 1939: 'Let us keep our minds open by all means, as long as that means keeping our sense of perspective and seeking an understanding of the forces which mold the world.…”

Section: Appendix C Additional Concluding Remarksmentioning

confidence: 99%

Do moving clocks slow down?

Alizzi¹,

Sen²,

Силагадзе³

2022

Eur. J. Phys.

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The special theory of relativity has fundamentally changed our views of space and time. The relativity of simultaneity in particular, and the theory of relativity as a whole, still presents significant difficulty for beginners in the theory. The difficulty stems from the fact that the usual presentation of special relativity is based on Newtonian concepts, which are relativized and change their meaning in the course of the presentation. A better pedagogical practice, in our opinion, would be to base the presentation from the very beginning on the four-dimensional formulation of Minkowski and thus remove from the theory all the paradoxical connotations that invariably accompany the usual presentation of special relativity.

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Section: Appendix C Additional Concluding Remarksmentioning

confidence: 99%

Do moving clocks slow down?

Alizzi¹,

Sen²,

Силагадзе³

2022

Eur. J. Phys.

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“…Since δF = m/(2c 2 )µx 2 (0) and δx (0) = 0 for expansions in the M = 1 case, the contributions are null after the lineal one. For a general discussion about projective phase, central extensions and invariance up to a total derivative of the Lagrangian see [35][36][37].…”

Section: Jhep08(2020)033mentioning

confidence: 99%

Space-time Schrödinger symmetries of a post-Galilean particle

Batlle

Gomis

2020

J. High Energ. Phys.

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We study the space-time symmetries of the actions obtained by expanding the action for a massive free relativistic particle around the Galilean action [1]. We obtain all the point space-time symmetries of the post-Galilean actions by working in canonical space. We also construct an infinite collection of generalized Schrödinger algebras parameterized by an integer M , with M = 0 corresponding to the standard Schrödinger algebra. We discuss the Schrödinger equations associated to these algebras, their solutions and projective phases.

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“…On the opposite camp B, others side with the idea that mass is a relativistic invariant. Among them, we quote Wheeler and Taylor [23], which emphasize the invariance of the mass as a result coming from the inner product of four-momenta, in their influential textbook on relativity, and other physicists such as Hecht [42,43], Adler [25], Roche [44], Oas [45] and Silagadze [46,47].…”

Section: E = MC 2 and Implications For Teachingmentioning

confidence: 99%

The meanings of mass and E = mc2: an approach based on conceptual maps

Kneubil

2018

Rev. Bras. Ensino Fís.

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In this work, we discuss transformations in the meaning of the concept of mass, which are important to physics teaching, by means of three conceptual schemes, which emphasize visual patterns of knowledge organization. We begin by discussing how the meaning of a physical concept is constructed, through its relations with others. In physical theories, these connections usually involve mathematical operations. We focus on the concept of mass and its changes in three different contexts, namely classical mechanics, electromagnetism and relativity. Modifications are displayed as shifts in its relative position in conceptual schemes. These schemes enforce visual knowledge and may be used as didactical tools for teaching the subject, since they stress both the signification of mass in classical mechanics and its re-signification in relativity. This paves the way for a discussion of different approaches adopted for teaching the mass-energy relation in relativity, expressed by the famous formula E = mc 2 . As the terms rest mass, relativistic mass and invariant mass, which have different ontological and epistemological contents, are part of this discussion, we consider the main approaches to mass present in both relativity textbooks and discourses by some influential physicists.

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Relativistic mass and modern physics

Cited by 4 publications

References 56 publications

Do moving clocks slow down?

Do moving clocks slow down?

Space-time Schrödinger symmetries of a post-Galilean particle

The meanings of mass and E = mc2: an approach based on conceptual maps

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