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==Electricity==

==Electricity==

Franklin's great scientific achievement came in his experiments and theories regarding [[electricity]].  He was first intrigued by the concept after meeting Archibald Spencer and witnessing his demonstrations on the creation of static electricity. In 1747, Spencer donated a glass tube and information on generating electricity to the Library Company.  Franklin had several of these glass devices made for his experiments.  He theorized that electricity was one "fluid."  He discovered that when a "positive" charge is created that a "negative" charge is created as well, which became known as the [[conservation of charge]].  He also began using [[Leyden jar]]s, a glass jar with foil on the outside and a conductor such as water or metal on the inside that could be charged with a wire.  Franklin determined that the charge was not stored in the conductor, as was previously thought, and was held in the glass.<ref>We now know that the Leyden jar is an early form of the [[capacitor]], that the charge is contained in a layer of the conductor facing the glass and that the glass (the [[dielectricum]]) increases the [[capacitance]] of the jar (amount of charge that can be held).</ref>  Based on this knowledge, he invented the first electrical battery, which was a series of glass planks that were flanked by metal and wired together.

Franklin's great scientific achievement came in his experiments and theories regarding [[electricity]].  He was first intrigued by the concept after meeting Archibald Spencer and witnessing his demonstrations on the creation of static electricity. In 1747, Spencer donated a glass tube and information on generating electricity to the Library Company.  Franklin had several of these glass devices made for his experiments.  He theorized that electricity was one "fluid."  He discovered that when a "positive" charge is created that a "negative" charge is created as well, which became known as the [[conservation of charge]].  He also began using [[Leyden jar]]s, a glass jar with foil on the outside and a conductor such as water or metal on the inside that could be charged with a wire.  Franklin determined that the charge was not stored in the conductor, as was previously thought, and was held in the glass.<ref>We now know that the Leyden jar is an early form of the [[capacitor]], that the charge is contained in a layer of the conductor facing the glass and that the glass (the [[dielectricum]]) increases the [[capacitance]] of the jar (amount of charge that can be held).</ref>  Based on this knowledge, he invented the first electrical battery, which was a series of glass planks that were flanked by metal and wired together.

 

Franklin began noticing the similar properties of [[lightning]] and electrical sparks, which led to his most famous experiment.  In 1750, Franklin outlined his proposal in two letters to Peter Collinson, which were published and presented to the Royal Society in London. On May 10, 1752 French scientist [[Thomas-François D'Alibard]] successfully performed Franklin's experiment outside of Paris.  In June, before word of success had crossed the Atlantic, Franklin performed his kite and key experiment with his son, William, with similar success, which has become a popular part of American folklore.<ref> See [http://www.mos.org/sln/toe/kite.html], [http://www.thebakken.org/electricity/franklin-kite.html]  and [http://www2.fi.edu/exhibits/permanent/electricity.php]</ref> This led to the invention of lightning rods [http://fi.edu/franklin/inventor/images/rod.jpg], which became widespread in the colonies, as well as Europe, bringing international fame to Franklin almost overnight.  In 1753, he received honorary degrees from both Harvard and Yale, and the Royal Society in London awarded him the prestigious [[Copley Medal]].

Franklin began noticing the similar properties of [[lightning]] and electrical sparks, which led to his most famous experiment.  In 1750, Franklin outlined his proposal in two letters to Peter Collinson, which were published and presented to the Royal Society in London. On May 10, 1752 French scientist [[Thomas-François D'Alibard]] successfully performed Franklin's experiment outside of Paris.  In June, before word of success had crossed the Atlantic, Franklin performed his kite and key experiment with his son, William, with similar success, which has become a popular part of American folklore.<ref> See [http://www.mos.org/sln/toe/kite.html], [http://www.thebakken.org/electricity/franklin-kite.html]  and [http://www2.fi.edu/exhibits/permanent/electricity.php]</ref> This led to the invention of lightning rods [http://fi.edu/franklin/inventor/images/rod.jpg], which became widespread in the colonies, as well as Europe, bringing international fame to Franklin almost overnight.  In 1753, he received honorary degrees from both Harvard and Yale, and the Royal Society in London awarded him the prestigious [[Copley Medal]].

Franklin is responsible for the nomenclature of "positive" and "negative" charge. He believed he could tell the direction in which electricity traveled by observing sparks. He was wrong; the electrons, which are the particles carrying ordinary [[electricity]], move in the opposite of the direction he thought they did. As a result, when electrons were discovered, according to Franklin's designation they had to be considered as having a negative charge.

Franklin is responsible for the nomenclature of "positive" and "negative" charge. He believed he could tell the direction in which electricity traveled by observing sparks. He was wrong; the electrons, which are the particles carrying ordinary [[electricity]], move in the opposite of the direction he thought they did. As a result, when electrons were discovered, according to Franklin's designation they had to be considered as having a negative charge.

==Colonial leader==

==Colonial leader==

While Franklin thought of himself as a loyal subject, he did question some of the Crown’s actions.  In 1754, he proposed the [[Albany Plan of Union]], which would have united the colonies (and the Iroquois League as well) under a Royal governor, and given the colonies the power to tax themselves.  Many of the colonies did not send representatives to Albany, and nothing came of the plan.

While Franklin thought of himself as a loyal subject, he did question some of the Crown’s actions.  In 1754, he proposed the [[Albany Plan of Union]], which would have united the colonies (and the Iroquois League as well) under a Royal governor, and given the colonies the power to tax themselves.  Many of the colonies did not send representatives to Albany, and nothing came of the plan.