🧲 Faraday's Forces of Nature

What you’ll learn

1. Pull the paper overState that Faraday's 1859–60 Christmas lectures begin with a pull you can watch, that Crookes printed them as spoken, and that gold-leaf in a vacuum falls as fast as a coin in air because gravitation was never the variable.A cold, a postponed lecture, a sheet of paper. Six hours for the young. Gold that was always falling that fast.
2. Same kind, then unlikeDistinguish cohesion (same kind, even in a liquid) from chemical affinity (unlike kinds), and say what Faraday does with ice, heat, and the two gases from water.Alum overnight. Melt ice and heat is taken. Mercury still holds. Hydrogen burns; oxygen will not, and a match flares in it.
3. The force that can travelRead magnetism as a dual attraction that survives in a centre fragment, electricity as a power you can send, and Lecture VI as chemical action arriving somewhere else — then try the paper tonight without treating his 'force' as our energy.A scrap from the middle is still two-ended. A spark from a finger. Zinc's pull on the copper. Stand the paper up.

Questions this course answers

Based on a real book

This course is built from On the Various Forces of Nature and Their Relations to Each Other by Michael Faraday — the complete public-domain text, free to read and listen to on Wunder. The book itself is never rewritten or AI-edited; this course teaches its ideas.

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Grounded in trusted sources

• Michael Faraday, On the Various Forces of Nature and Their Relations to Each Other: a course of lectures delivered before a juvenile audience at the Royal Institution, edited by William Crookes. Consulted as the 1894 Chatto & Windus 'new edition' on Internet Archive (identifier onvariousforceso00farauoft; OCR of the full text) and as the complete lecture text at the Internet History Sourcebooks, Fordham University. First issued 1860 as A Course of Six Lectures on the Various Forces of Matter and Their Relations to Each Other, delivered during the Christmas holidays of 1859–60. Crookes preface: printed as spoken, verbatim et literatim; reporter's notes corrected only where the science was unclear. Lecture I: paper and string; shell-lac and flannel; gold-leaf in a pumped vessel falls 'as gold should fall,' as quickly as a coin does in air; paper on a penny. Lecture II: inverse-square via lamp and card; Uranus 'eighteen hundred millions of miles'; Neptune found by attraction at 'three thousand millions of miles'; cohesion; alum crystals overnight. Lecture III: red-hot iron in ice; diminish cohesion, absorb heat / increase it, heat evolved; mercury and water as streams; soap bubble blows out a light; voltaic decomposition of water, hydrogen burns, oxygen relights a match; two volumes to one; one grain hydrogen to eight of oxygen. Lecture IV: zinc, water, oil of vitriol for hydrogen; heat expands 'all bodies but one'; brass rod and gauge. Lecture V: loadstone and keys; magnet ends attract/repel; fragment from the centre still two-ended; Leyden jar spark through a long wire; insulating stool; spark from Faraday's finger lights a gas jet. Lecture VI: zinc and acid; amalgam stops the hydrogen until copper is added; copper plates onto platinum; Grove battery of forty pairs; spark; 'surpass the human intellect.' Appendix on lighthouse electric light is not one of the six. https://archive.org/details/onvariousforceso00farauoft and https://sourcebooks.fordham.edu/mod/1859Faraday-forces.asp
• Project Gutenberg ebook 52293, On the various forces of nature and their relations to each other, Faraday, editor Crookes. Live files returned HTTP 503 during this review; the 1894 Chatto scan above is the same edition family Gutenberg used (credits: produced from images at The Internet Archive/Canadian Libraries). Canonical: https://www.gutenberg.org/ebooks/52293
• Wellcome Collection, On the various forces of nature and their relations to each other, Faraday, edited by Crookes. London: Chatto and Windus, dated [1874] in the catalogue, with notes of reprints in 1876, 1881, 1894; 200 pages. https://wellcomecollection.org/works/rpucwmu5
• Royal Institution, History of the Christmas Lectures. Faraday's 1859 series listed as The various forces of matter and their relations to each other; 1860 is The chemical history of a candle. Confirms the Christmas-lecture frame; does not replace Faraday's own wording for the demos. https://www.rigb.org/christmas-lectures/history-christmas-lectures
• University of St Andrews MacTutor, Michael Faraday biography. 1859–60 Christmas lectures on the various forces of matter; the following Christmas, the chemical history of a candle. https://mathshistory.st-andrews.ac.uk/Biographies/Faraday/
• Illustrated London News engraving after Alexander Blaikley, Faraday lecturing at the Royal Institution, 27 December 1855 (printed 16 February 1856) — four years before this book's Christmas, same theatre. Wikimedia Commons File:Faraday_lecture_at_Royal_Institution_1856.jpg, public domain. Thomas Phillips, Michael Faraday, 1841–42, NPG 269, File:M_Faraday_Th_Phillips_oil_1842.jpg, public domain. Early Leyden jar, File:Early_Layden_jar.png, public domain. Gold leaf in a vial, W. Oelen, 2007, File:Gold_leaf.jpg, CC BY-SA 3.0. Alum crystals, Walkerma, 2005, File:Alum.jpg, PD-self.

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