1672 Isaac Newton’s letter on light and colour is read to the Royal society and criticised by Robert Hooke. Newton threatens to withdraw from the Royal Society. The cracks are papered over.
1679 Newton and Hooke correspond on light, the movement of planets and many other subjects. They disagree but are still polite to each other.
1680 Newton ends his letters to Hooke. Hooke continues to write occasionally. Their relationship deteriorates from unfriendly rivalry to icy feud. (It is amazing how much of science is filled with these.) Newton will make sure the correspondence is destroyed as part of his efforts to claim all credit for gravity and electrics.
POD
1681 Hooke’s latest letter to Newton about telescope apertures mentions in passing that new results from Hamburg suggest his theory of light may be mistaken. Newton is incensed and writes to Halley (who has friends in Germany) demanding more details. Halley does his best but what he sends is a garbled account of Von Guericke’s electric experiments. Newton tries to set up the experiments to refute Hooke but uses copper wire (not silk thread ) due to the mistranslation of a spelling mistake.
1682 For the next ten years Newton works privately on many subjects one of which is his study of electrics based on the apparatus he had built. He dislikes the popular theories of fluids preferring corpuscular theories. He starts by spinning a magnet mounted on a wheel next to a wire and showing a compass is deflected. Then using the size of sparks as a measure of potential he proposes his laws of electrics.
1. The flow of electric corpuscles (OTL Current) is such to oppose the movement of a magnet and the force on a magnet is proportional to the flow, inversely proportional to the square of the distance to the wire and such that the magnet would move to oppose the flow of corpuscles
2. The flow is proportional to the electric potential (OTL Voltage), the cross sectional area of the wire and inversely proportional to the length of the wire (now referred to as the width where W=k A/l) (OTL Conductance). This is usually written as F= PW (OTL I = V/R).
(The time this takes comes from his biblical numerology studies which I assume will have little effect on the future and, because he is Newton, he tells nobody about his work)
1683 Robert Sieur de La Salle reaches mouth of the Mississippi and claims Louisiana (present day East NuSpania and West Carolina) in the name of Louis XIV and with 700 colonists from France founds FortSt Louis.
1687 Newton is persuaded to publish his Mathematical Principles of Natural Philosophy in which he reveals his theory of gravity and laws of motion. Hooke claims he has not been given credit for his suggestions. This is probably true.
1701 War of Spanish Succession. (Entirely unaffected, changes so far are limited to Newton and his immediate household.)
1703 With the death of Hooke and Newton’s election to the Presidency he achieves a dominance over the Royal Society and British science, which will be unchallenged for the next 25 years.
1704 Newton publishes his work on corpuscle theory of light in OPTIKS which includes a chapter on electrics which he separates from ‘statiks’. He also discusses an experiment in which a spark in one loop causes a spark in a second isolated loop. This effect he explains as the movement of electric corpuscles through the lumniferous aether just as light corpuscles move.
1679 Newton and Hooke correspond on light, the movement of planets and many other subjects. They disagree but are still polite to each other.
1680 Newton ends his letters to Hooke. Hooke continues to write occasionally. Their relationship deteriorates from unfriendly rivalry to icy feud. (It is amazing how much of science is filled with these.) Newton will make sure the correspondence is destroyed as part of his efforts to claim all credit for gravity and electrics.
POD
1681 Hooke’s latest letter to Newton about telescope apertures mentions in passing that new results from Hamburg suggest his theory of light may be mistaken. Newton is incensed and writes to Halley (who has friends in Germany) demanding more details. Halley does his best but what he sends is a garbled account of Von Guericke’s electric experiments. Newton tries to set up the experiments to refute Hooke but uses copper wire (not silk thread ) due to the mistranslation of a spelling mistake.
1682 For the next ten years Newton works privately on many subjects one of which is his study of electrics based on the apparatus he had built. He dislikes the popular theories of fluids preferring corpuscular theories. He starts by spinning a magnet mounted on a wheel next to a wire and showing a compass is deflected. Then using the size of sparks as a measure of potential he proposes his laws of electrics.
1. The flow of electric corpuscles (OTL Current) is such to oppose the movement of a magnet and the force on a magnet is proportional to the flow, inversely proportional to the square of the distance to the wire and such that the magnet would move to oppose the flow of corpuscles
2. The flow is proportional to the electric potential (OTL Voltage), the cross sectional area of the wire and inversely proportional to the length of the wire (now referred to as the width where W=k A/l) (OTL Conductance). This is usually written as F= PW (OTL I = V/R).
(The time this takes comes from his biblical numerology studies which I assume will have little effect on the future and, because he is Newton, he tells nobody about his work)
1683 Robert Sieur de La Salle reaches mouth of the Mississippi and claims Louisiana (present day East NuSpania and West Carolina) in the name of Louis XIV and with 700 colonists from France founds FortSt Louis.
1687 Newton is persuaded to publish his Mathematical Principles of Natural Philosophy in which he reveals his theory of gravity and laws of motion. Hooke claims he has not been given credit for his suggestions. This is probably true.
1701 War of Spanish Succession. (Entirely unaffected, changes so far are limited to Newton and his immediate household.)
1703 With the death of Hooke and Newton’s election to the Presidency he achieves a dominance over the Royal Society and British science, which will be unchallenged for the next 25 years.
1704 Newton publishes his work on corpuscle theory of light in OPTIKS which includes a chapter on electrics which he separates from ‘statiks’. He also discusses an experiment in which a spark in one loop causes a spark in a second isolated loop. This effect he explains as the movement of electric corpuscles through the lumniferous aether just as light corpuscles move.