László Egyed

László Egyed (12 February 1914 – 11 July 1970) was a Hungarian geophysicist who published over 100 scientific articles.

[1][2] Like Ott Christoph Hilgenberg, Samuel Warren Carey and Pascual Jordan, Egyed was a supporter of the expanding Earth theory, an alternative to plate tectonics.

He calculated an increase of the Earth's radius by approximately 1 millimeter per year, or a total of 500 kilometers since the Cambrian period.

On phenomenological grounds Egyed proposed a possible decrease of the gravitational constant in connection with phase transitions within the Earth.

Although Egyed's hypotheses of phase transitions were confirmed, standard theoretical explanations today do not attribute this phenomenon to any expansion of the Earth.