the greatest scientist
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The greatest scientist. Thomas Alva Edison. Background. American scientist and inventor. 11 th February, 1847. the 7 th and the last child. mother (school teacher). father (grocery shopkeeper ). started to talk at age 4. attended school for only 3 months. Background. - PowerPoint PPT Presentation
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The greatest scientist
Thomas Alva Edison
11th February, 1847American scientist and inventorthe 7th and the last child
mother (school teacher)
father (grocery shopkeeper)
started to talk at age 4
attended school for only 3 months
Background
built a science laboratory at basement at age 10
train accident at age 15
suffered from ear problem
Background
became a telegraph assistant at age 16
Contributions
kinetoscope
kinetographlight bulb
phonograph
telegraph
The structure of a bulb
filament
support wires
inert gas惰性氣體
wires(for electricity to pass through)
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