Read · Mass and energy: two accounts, one subtraction · Facsimile
The unsectioned argument · explanatory reading
Three pages that end with a body’s mass as a measure of its energy. Follow the two energy accounts, and the one subtraction that leads there.
This is the pinned original journal scan.
Read the original scanned pages
These are the pinned journal scans, not a newly typeset transcription or a translation.
Opening at the first recorded source page for s0. The page directory marks every page with a recorded source unit in this section; the complete paper remains available.
Initial selection: printed page 639, PDF page 1 of 3.
Open printed page 639 in the original PDF · Download the complete pinned PDF · Return to the explanation
Printed journal page numbers and PDF page numbers are counted separately. The page above is an image of the scan; the links open the pinned PDF itself. Some browsers ignore a PDF page fragment, so use the PDF page number in the directory if one opens at the start.
Source identity
- Source record
- ap-18-639
- Acquired
- 2026-09-18
- Scan held by
- Bell & Howell / UMI / Internet Archive
- Recorded scan rights
- scan-open-terms · Terms statement
- Origin
- Open the recorded archival source
- Pinned SHA-256
c4770702edca3047c324a92cc0a008e27355c236b3e5e0a87d75eea630ab5f19
This build checked the served file against this digest and checked the recorded page-map arithmetic. The source inventory is navigation metadata, not the original text.
What is on each printed page
Each page link opens the scan at that page, with or without JavaScript. With JavaScript, a passage below turns the viewer above to the page where it begins, and a passage that runs onto another page links to each page it is on.