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ERIC Number: EJ1015465
Record Type: Journal
Publication Date: 2013-May
Pages: 3
Abstractor: As Provided
ISSN: ISSN-0031-921X
The Orbit of Water Droplets around Charged Rod
Ferstl, Andrew; Burns, Andrew
Physics Teacher, v51 n5 p300-302 May 2013
The motion of charges around a centrally charged object is often compared to gravitational orbits (such as satellites around planets). Recently, a video taken by astronaut Don Pettit onboard the International Space Station shows water droplets orbiting a charged knitting needle. Here we attempt to model this motion and estimate the charges on the objects involved in this system. (Contains 1 table and 3 figures.)
American Association of Physics Teachers. One Physics Ellipse, College Park, MD 20740. Tel: 301-209-3300; Fax: 301-209-0845; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A