The Natural Philosophy of William Gilbert and His Predecessors
The Natural Philosophy of William Gilbert and His Predecessors
History - Medieval/Middle Ages, History - Modern (1750+), Science - Physics
The Natural Philosophy of William Gilbert and His Predecessors, written by W. James King in the mid-20th century, examines the pivotal contributions of William Gilbert to the fields of magnetism and electricity. It highlights Gilbert's seminal work, ''De magnete,'' and explores how his theories were shaped by earlier scholars like Aristotle and St. Thomas Aquinas. King's analysis reveals the tension between innovation and tradition in Gilbert's thought, marking him as a crucial figure in the transition from medieval to modern science.
About The Natural Philosophy of William Gilbert and His Predecessors
Chapter Summaries
- Introduction
- King establishes that while Gilbert was traditionally credited with founding modern magnetism, historians have traced many 17th-century scientific concepts back to medieval origins. The essay aims to examine Gilbert's actual contributions and his dependence on earlier work.
- 1
- Examines criteria for Gilbert's significance in science history, noting the absence of quantitative methods in De magnete and questioning his role as founder of modern electricity and magnetism. Discusses his experimental contributions versus his philosophical approach.
- 2
- Traces explanations of magnetic phenomena from ancient Greek philosophers through medieval scholastics. Covers animistic explanations by Thales and Plato, mechanical theories by Lucretius, and Galen's sympathetic faculty theory.
Key Themes
- Continuity vs. Revolution in Scientific Thought
- The book demonstrates how Gilbert, traditionally seen as a founder of modern science, was actually more of a modifier of medieval scholastic philosophy than a revolutionary herald of new science.
- The Role of Analogy in Scientific Method
- Gilbert's method relied heavily on analogical reasoning, comparing magnetic phenomena to biological processes, celestial motions, and spiritual relationships, showing both the power and limitations of analogical thinking in science.
- Animism vs. Mechanism in Natural Philosophy
- The fundamental philosophical divide between Gilbert's animistic explanation of magnetic forces as soul-like principles and the emerging mechanical worldview that would dominate later science.
Characters
- William Gilbert(protagonist)
- Elizabethan physician and scientist who published De magnete in 1600. Gilbert developed a comprehensive philosophy of magnetism based on the idea that the Earth itself is a giant magnet with a soul-like animating principle.
- St. Thomas Aquinas(major)
- Medieval scholastic philosopher whose explanations of the loadstone Gilbert mentioned with approval. Aquinas explained magnetic attraction through the concept of substantial forms and occult powers derived from celestial influences.
- Petrus Peregrinus(major)
- 13th-century scholar who wrote an influential letter on magnetism in 1269. His experimental work on magnetic poles and properties formed the foundation for much of Gilbert's later investigations.
- Francis Bacon(major)
- Contemporary English philosopher and advocate of empirical method who criticized Gilbert's magnetic philosophy as overly speculative. Bacon preferred mechanical explanations over Gilbert's animistic theories.
- Nicholas of Cusa(major)
- 15th-century Cardinal and philosopher who used magnetic attraction as a metaphor for spiritual relationships. Gilbert noted his explanations with approval as another predecessor who understood magnetic phenomena through formal causes.
- Robert Norman(major)
- English navigator and instrument maker who discovered magnetic inclination and wrote 'The New Attractive' in 1581. His practical work on compass variation influenced Gilbert's studies.
