GUEST LECTURE MATERIALS

Quantum Navigation &
Conventionalistic Gravitation

March 27, 2026 | Dr. Clovis de Matos (ESA)

Lecture Presentation

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Official Lecture Slides V4 — CORRECTED

"From Clock Synchronization to Conventionalistic Gravitation" — Covering the interdisciplinary intersection of GNSS engineering and theoretical physics.

Updated March 27, 2026: Corrected mathematical typos on slides 9 and 12. This version replaces all previous versions.

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Background Research & Articles

Explore the scientific publications that provided the foundation for today's lecture.

Varying Newton gravitational "constant" cosmology

N. Lori, C.J. de Matos | Annals of Physics 478 (2025) 170014

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Consequences of the Sagnac effect for Newton’s bucket experiment

C.J. de Matos | Next Research 5 (2026) 101337

Access via DOI (Open Access)

Session Insights

Synchrony & Symmetries

How the Sagnac effect challenges our assumptions about absolute time in satellite positioning.

Variable G Hypothesis

The mind-bending possibility that the gravitational constant is not as constant as we think.

The ISU Spirit

A masterclass in interdisciplinary thinking—blending rigorous engineering with Einstein's physics.