It was just at this time, during the summer of 1900, that Curlbaum and Rubens in Berlin had made very accurate new measurements of the spectrum of heat radiation. When Planck heard of these results he tried to represent them by simple mathematical formulas which looked plausible from his research on the general connection between heat and radiation. One day Planck and Rubens met for tea in Planck's home and compared Rubens' latest results with a new formula suggested by Planck. The comparison showed a complete agreement. This was the discovery of Planck's law of heat radiation.

Hans-Jörg Rheinberger (born 12 January 1946) is an historian of science who comes from Liechtenstein. He was director of the Max Planck Institute for the History of Science in Berlin from 1997 to 2014. His focus areas within the history of science are the history and epistemology of the experiment, and further the history of molecular biology and protein biosynthesis.

Ich betrachte das Bewusstsein als grundlegend. Ich betrachte Materie als Ableitung vom Bewusstsein. Wir können nicht hinter das Bewusstsein kommen. Alles, worüber wir reden, alles, was wir für existent halten, postuliert das Bewusstsein.

I regard consciousness as fundamental. I regard matter as derivative from consciousness. We cannot get behind consciousness. Everything that we talk about, everything that we regard as existing, postulates consciousness.

Eine neue wissenschaftliche Wahrheit pflegt sich nicht in der Weise durchzusetzen, daß ihre Gegner überzeugt werden und sich als belehrt erklären, sondern vielmehr dadurch, daß ihre Gegner allmählich aussterben und daß die heranwachsende Generation von vornherein mit der Wahrheit vertraut gemacht ist.A new scientific truth does not triumph by convincing its opponents and making them see the light, but rather its opponents eventually die, and a new generation grows up that is familiar with it.