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GR: Fachverband Gravitation und Relativitätstheorie

GR 9: Poster

GR 9.19: Poster

Mittwoch, 2. April 2025, 16:15–18:15, ZHG Foyer 1. OG

Discovery of Real and Idealized Frames with GPS Satellites — •Hans-Otto Carmesin — Gymnasium Athenaeum, Harsefelder Straße 40, 21680 Stade — Studienseminar Stade, Bahnhofstr. 5, 21682 Stade — Universität Bremen, Fachbereich 1, Postfach 330440, 28334 Bremen

The GPS navigation system is omnipresent in modern traffic and navigation (Ashby 2024). Moreover, the GPS satellites provide very precise and multiply related measurements of space and time. Students from class 10 can analyze such relations with linear and quadratic equations, including their inverse terms.

Thereby, they discover an idealization inherent to the present - day theory of special relativity and of general relativity (Carmesin 2025). This analytic result is permanently confirmed empirically by the working of the GPS navigational system.

In general, a symmetry transformation provides realistic frames. This provides fundamental insights about time, space and frames that are essential for the navigation of spacecrafts in interplanetary space and beyond.

Literature

Ashby, Neil; Patla, Bijunath R. (2024): A Relativistic Framework to estimate Clock Rates on the Moon. The Astronomical Journal, 168 (112), 14pp.

Carmesin, H.-O. (2025): On the Dynamics of Time, Space and Quanta. Berlin: Verlag Dr. Köster.

Keywords: Relativity; Gravity; reference frame; symmetry transformation; space flight