1 gen 1751 anni - Benjamin Franklin: Experiments & Observations on Electricity

Descrizione:

Benjamin Franklin published Experiments and Observations on Electricity after several years of experiments done with several friends. In this book Franklin suggested an experiment to prove that lightning is a large-scale electrical discharge, a task which later he took upon himself, using a kite. This led to the invention of the lightning rod. In Franklin's theory of electricity, "positively electrified bodies repel one another via short-range forces between the particles of their respective atmospheres." Such an 'atmosphere,' or "aura of electrical matter" is a once the 'charge,' an aether, and the source of the 'electric field' (Heilbron 1981:190), and flowed from the more highly charged body to the less highly charged, on analogy to hydrodynamical principles (Cantor and Hodge 1981:30). He invented many the terms which are still used: positive, negative, conductor, battery, etc.

Aggiunto al nastro di tempo:

Data: