1. By Mr. Christian Walleck

2. Robert Millikan Childhood SchoolingPhysics Work

3. Childhood Born March 22, 1868 in Morrison Ill. Robert was the 2 nd son of Reverend Silas Franklin Millikan and Mary Jane Andrews Lived in Iowa Back

4. Schooling Attended Maquoketa High School Went to Oberlin College in Ohio His favorite subjects were Greek and Mathematics Back

5. Work Worked as a court reporter before college Taught Elementary Physics for 2 years Wrote many physics books. Physics professor Back

6. Physics Contributions Oil Drop Experiment Photoelectric Effect The End Cat

7. Oil Drop Experiment Tiny oil drops were shot into an enclosed space One charged drop was suspended between two charged plates The weight of the oil drop was offset by the applied electrical force By setting the electrical force equal to the known weight of the oil drop, the charge on the drop was found. Next

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9. Oil Drop Experiment All of the oil drop’s charges were a multiple of -1.6 x 10 -19C This proved that 1 electron had the charge of -1.6 x 10 -19C Home Back Victory

10. Photoelectric Effect The particle theory of light was first presented by Einstein Millikan tested Einstein’s theory and proved it Millikan is considered one of the fathers of modern particle physics Next

11. Photoelectric Effect Home Back Light waves hit a metallic substance. Excited electrons leave metal.

12. The End Go Can ada