Who they are
Otto Lummer is among the experimental researchers whose radiation measurements are discussed by Max Planck in the 1900 derivation of his spectrum law. His inclusion identifies the empirical work against which the new theory was judged. The cited paper documents that connection without assigning him authorship of Planck’s mathematical derivation.
He represents experimental evidence supporting and testing early quantum theory.
Selected contributions
- Provided radiation measurements discussed in Planck’s 1900 paper.Source ↗
Selected reading about this person
Academic paper · 1900
On the Theory of the Energy Distribution Law of the Normal Spectrum
Planck calculates the radiation distribution by counting finite energy elements proportional to frequency. The inspected translation shows the connection to measured radiation data, including work by Rubens and Kurlbaum.
English translation of the 1900 paper; translator unidentified in the inspected reproduction.
Reading scope & citation
Reuses documented prior inspection: Selected English translation pages visually read as PDF screenshots; not a full derivation audit or original-language comparison. Reused prior inspected evidence: Selected English translation pages visually read as PDF screenshots; not a full derivation audit or original-language comparison.
In the timeline
Biography sources & portrait credit
- On the Theory of the Energy Distribution Law of the Normal Spectrum ↗Verhandlungen der Deutschen Physikalischen Gesellschaft; English reproduction hosted by Universitat de Barcelona
Portrait credit
Unknown ( Unbekannt according to description in the Humboldt University of Berlin website). Public domain (Commons file-specific copyright declaration). Via Wikimedia Commons.
Photograph. Cropped to 4:5, resized to 320 × 400 and converted to WebP.
Image source & identification ↗ · Public domain (Commons file-specific copyright declaration) ↗
