Summary

This book presents a method for investigating natural phenomena through systematic experimentation, using the example of a clock's weight to test gravitational attraction. The central argument is that by observing how a clock moved by leaden weights behaves at different altitudes—slower on a steeple due to diminished weight virtue, faster in a mine due to increased virtue—one can infer that weight is caused by the earth's mass attraction. The text extends this approach to other natures, such as the polarity of an iron needle touched by a magnet, distinguishing between the magnet's role in exciting the iron and the earth's role in directing its motion. A reader learns that genuine understanding comes from primary axioms derived from such experiments, not from hypotheses like atoms or vacuum. The book emphasizes that even in fields where man cannot act, like astronomy, knowledge depends on comprehending simple natures such as spontaneous rotation or magnetic force.

Key concepts

Instance of the Fingerpost — A decisive experiment that points to one of two possible causes for a natural phenomenon, such as using a clock's weight to test gravitational attraction.
Primary axioms — Fundamental principles derived from systematic observation of simple natures, which provide the only clear light for dispelling difficulties in investigation.
Latent conformation — The hidden structure of bodies, including the spirit's pores, passages, and cells, which must be examined through primary axioms rather than atomic hypotheses.
Spontaneous rotation — A simple nature that must be understood before determining whether the earth or heaven revolves in diurnal motion.
Polarity of the Iron Needle — The property of a magnetized iron needle to align north-south, investigated to determine whether the magnet excites the iron or the earth directs its motion.

Experimental Demonstration of a Quantum Logic Clock

Summary

Key concepts

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