* Benjamin Franklin
Born January 17, 1706 Boston, Massachusetts Bay
DiedApril 17, 1790 (aged 84) Philadelphia, Pennsylvania Ben Franklin was an American writer, publisher, scientist and diplomat, who helped to draw up the famous Declaration of Independence and the US Constitution. In 1752 Franklin proved that lightning and the spark from amber were one and the same thing. The story of this famous milestone is a familiar one, in which Franklin fastened an iron spike to a silken kite, which he flew during a thunderstorm, while holding the end of the kite string by an iron key. When lightening flashed, a tiny spark jumped from the key to his wrist. The experiment proved Franklin's theory. * Alessandro Giuseppe Antonio Anastasio Volta
Born18 February 1745 Como, Duchy of Milan
Died5 March 1827 (aged 82) Como, Lombardy-Venetia
Volta was an Italian physicist known for the invention of the battery in the 1800s. * Luigi Aloisio Galvani
BornSeptember 9, 1737 Bologna, Papal States
DiedDecember 4, 1798 (aged 61) Bologna, Papal States
Galvani was an Italian physician and physicist who had also studied medicine and had practised as a doctor. . In 1771, he discovered that the muscles of dead frogs legs twitched when struck by a spark. This was one of the first forays into the study of bioelectricity, a field that still today studies the electrical patterns and signals of the nervous system. * Michael Faraday
Born22 September 1791 Newington Butts, England
Died25 August 1867 (aged 75) Hampton Court, Middlesex, England
Faraday was an English scientistwho contributed to the fields of electromagnetism and electrochemistry. His main discoveries include those of electromagnetic induction, diamagnetism and electrolysis. * Thomas Alva Edison
BornFebruary 11, 1847 Milan, Ohio, U.S.
DiedOctober 18, 1931 (aged 84) West Orange, New Jersey, U.S.
Edison was an American inventorand businessman....