# Millikan oil drop experiment/Related Articles

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A list of Citizendium articles, and planned articles, about Millikan oil drop experiment.
See also changes related to Millikan oil drop experiment, or pages that link to Millikan oil drop experiment or to this page or whose text contains "Millikan oil drop experiment".

## Parent topics

• Physics [r]: The study of forces and energies in space and time. [e]
• Electric charge [r]: A positive or negative property of matter that occurs as integral multiples of an elementary charge unit, and causes mutual repulsion of like-charged particles and mutual attraction of oppositely charged particles. [e]
• Gravity [r]: The tendency of objects with mass to accelerate toward each other. [e]

## Subtopics

• Elementary charge [r]: Charge of electron (negative) and proton (positive); before discovery of the quark thought to be the smallest possible electric charge, written ${\displaystyle e}$, value 1.602 176 53(14) × 10−19 C [e]