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Letter · 1686 · age 43

Letter to Edmund Halley on work on ellipses and the descent of falling bodies

by Isaac Newton

Kept from www.newtonproject.ox.ac.uk · 1 file · 16 KBCall number NEW L1686.05

Provenance

Source
www.newtonproject.ox.ac.uk
Retrieved
1 October 2026
Source terms (summary)
'(c) 2026 The Newton Project' (page footer)
Rights
Likely in copyrightModern Newton Project transcription with a current copyright notice; Newton's own words are public domain.Basis: added material: modern diplomatic transcription, '(c) 2026 The Newton Project'.
Formats
HTML
Fingerprint
f14f8262092193e7f998b0a1c0e8030a021660e7381dc05788000c75429bc8cbsha256 of the file (64 characters). Any change to the file changes this code.
Cite as
Isaac Newton, Letter to Edmund Halley on work on ellipses and the descent of falling bodies (1686). Long Keeping, call number NEW L1686.05. https://longkeeping.com/isaac-newton/letter-to-edmund-halley-on-work-on-ellipses-and-the-descent/
Unchanged since collected At the last check, on 2 October 2026, all 903 originals, this work's file among them, matched the fingerprints recorded when they were collected. Each copy is re-checked by hand once a year; there is no automatic alert yet.

Notes on this copy

  • #6The source's terms restrict reuse (a copyright notice, a non-commercial licence, research use only, or permission required). The work's source terms say why it is served or held.

Original

Held in the archive: likely in copyright.

See it at its source (another site)

Files

First pass, not a clearance.

FileFormatSizeSourcesha256Label
NATP00326.htmlmain HTML 16 KB www.newtonproject.ox.ac.uk f14f8262092193e7f998b0a1c0e8030a021660e7381dc05788000c75429bc8cb Likely in copyrightModern Newton Project transcription with a current copyright notice; Newton's own words are public domain.Basis: added material: modern diplomatic transcription, '(c) 2026 The Newton Project'.Held in the archive: likely in copyright. Its source (another site)