English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Newton's deduction of the inverse square law from Kepler's ellipse and arealaws together with his "superb theorem" on the gravitation attraction ofspherically symmetric bodies, are the major steps leading to the discovery ofthe law of universal gravitation (Principia, 1687). The goal of this article isto revisit some "well-known" events in the history of science, and moreover, toprovide elementary and clean-cut proofs, still in the spirit of Newton, ofthese major advances. Being accessible to first year university students, theeducational aspect of such a coherent presentation should not be overlooked.

Revisiting the mathematical synthesis of the laws of Kepler and Galileo leading to Newton's law of universal gravitation