Read · Mass and energy: two accounts, one subtraction · Split view

The unsectioned argument · explanatory reading

Follow the light-energy input, the two balances, the unchanged-offset premise, and the low-speed coefficient without assigning an absolute rest energy in advance.

Newly authored explanatory preview in modern notation; editorial and physics review are pending. This is not a German source transcription, this edition’s English translation, or a complete critical edition. The source faces and pinned facsimile remain in preparation. The paper has no numbered sections: s0 is an editorial route identifier, and the headings below organize this explanation, not a verified printed inventory.