Inertia of Energy Conservation
Publishes a relativistic analysis linking conservation of centre-of-gravity motion with the inertia carried by energy, extending the implications of mass-energy equivalence.
Albert Einstein · Year
Albert Einstein records dated 1906, drawn directly from the World History Database source collection.

Publishes a relativistic analysis linking conservation of centre-of-gravity motion with the inertia carried by energy, extending the implications of mass-energy equivalence.
Publishes work extending the light-quantum hypothesis to the production and absorption of radiation.
Einstein's continuing work on radiation treated elementary exchanges between matter and electromagnetic energy as discrete processes rather than continuously divisible transfers.
Einstein re-examined Planck's radiation theory and emphasized that its success could be understood more naturally if radiation exchanged energy with matter in finite quantum amounts.
Einstein examined how material resonators exchange energy with radiation and strengthened the case that emission as well as absorption must be connected with discrete quantum transfers.
Einstein extended his quantum reasoning to resonant interactions between matter and radiation, treating absorption as an energy exchange constrained by discrete radiation quanta.
The University of Zurich formally awards Einstein his doctorate in physics.
His revised dissertation on molecular dimensions is published in Annalen der Physik.
Publishes a follow-up analysis refining his theory of Brownian motion.
Promoted to Technical Expert, second class, at the Swiss Patent Office.