This Site

“For the whole difficulty of philosophy appears to turn upon this: that from the phenomena of motion we may investigate the forces of nature, and then from these forces we may demonstrate the rest of the phenomena.”

Isaac Newton: Philosophiæ Naturalis Principia Mathematica. Preface*

Small but significant
NASA/ESA Hubble Space Telescope Image: Dwarf Galaxy NGC 5949

About

This site is about science topics, mainly physics, together with the necessary mathematics.

For

The site is for someone who is interested in these topics but did not study them at university.

Purpose

To provide short descriptions of, and links to, expert material that covers the topics in an accurate but understandable way.

  1. Expert means, generally: material produced by recognised authorities
  2. Accurate means: a correct and sufficient explanation, more than a general idea
  3. Understandable means: does not require a specialised understanding of mathematics or other university science training

*Newton’s Principia: The Central Argument. Dana Densmore, translation and diagrams by William H. Donahue. Third edition. Green Lion Press. ISBN 978-1-888009-23-1

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