Millikan's Experiment: Observing Vibrating Oil Droplets

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SUMMARY

Millikan's experiment, specifically the oil drop experiment, demonstrates the observation of vibrating oil droplets due to Brownian motion. This phenomenon occurs as the droplets are subjected to random collisions with molecules in the surrounding air, causing them to vibrate. The original experiment involved extensive measurements to minimize the impact of these fluctuations, showcasing Millikan's dedication to precision in scientific research. Understanding this effect is crucial for interpreting the results of the oil drop experiment accurately.

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Jorge Jr
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Hello. In Milikan's experiment, as we observe the oil droplets through the microscope, during the measurement of the speed of fall and rise.
we can see that the oil droplets are "vibrating".
Why does it happen?
Sorry for my bad English.
 
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The original Milikan experiment involved hundreds of measurements in order to reduce the consequence of the effect that you were observing (amongst all the others). He is one of my heroes because of that sort of dedication.
 
Is such an effect the Brownian effect?
 

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