Powerpoint presentation by Enzo Mejia, Grade 6, St. George's College, Lima, Peru

1. Tomas Alva Edison Made by: Enzo Mejía

2. Important things Born February 11, 1847(1847-02-11)Milan, Ohio . Died October 18, 1931 (aged 84)West Orange, New Jersey. Occupation inventor, scientist, businessman Spouse(s) Mary Stilwell (m. 1871–1884) (1871)–end (1885)»"Marriage Mary Stilwell to Thomas EdisonMina Edison (m. 1886–1931)

3. Otherimportant things Children Marion Estelle Edison (1873–1965)Thomas Alva Edison Jr. (1876–1935)William Leslie Edison (1878–1937)Madeleine Edison (1888–1979)Charles Edison (1890–1969)Theodore Miller Edison (1898–1992) Parents Samuel Ogden Edison, Jr. (1804–1896)Nancy Matthews Elliott (1810–1871). Relatives Lewis Miller (father-in-law)

4. Telegrapher Tomas was a telegrapher and thesecondday he wenttowork and he wasfired, because he spilled sulfuric acid onto the floor.

5. Carbón telefonetransmitter In 1877–1878, Edison invented and developed the carbon microphone used in all telephones along with the Bell receiver until the 1980s.

6. War of currents Edison patented a system for electricity distribution in 1880, which was essential to capitalize on the invention of the electric lamp. Then he upgrade the electricity system for other to it too. Therewas a fightbetweenEdison and George Westinghouse. Edison createdthewar of currenttoprevent AC tobeadopted.