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published by the Exploratorium
This activity from the Exploratorium provides a technique for determining the center of gravity of a long, thin object using only one's hands. A yard stick, with a piece of clay to displace its center of mass, is placed on a participants separated hands. Each time the hands are slid together, they meet under the stick's center of gravity. Materials needed, assembly, and an explanation of the results are also provided. This activity is part of Exploratorium's Science Snacks series.
Subjects Levels Resource Types
Classical Mechanics
- Gravity
- Statics of Rigid Bodies
= Center of Gravity
- High School
- Middle School
- Informal Education
- Instructional Material
= Activity
Intended Users Formats Ratings
- Learners
- Educators
- text/html
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Free access
© 2006 Exploratorium
center of mass, friction, gravity
Record Creator:
Metadata instance created June 13, 2006 by Ann Deml
Record Updated:
August 13, 2016 by Lyle Barbato
Last Update
when Cataloged:
August 4, 2006
Other Collections:

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Record Link
AIP Format
(Exploratorium, San Francisco, 2006), WWW Document, (
Center of Gravity (Exploratorium, San Francisco, 2006), <>.
APA Format
Center of Gravity. (2006, August 4). Retrieved August 14, 2022, from Exploratorium:
Chicago Format
Exploratorium. Center of Gravity. San Francisco: Exploratorium, August 4, 2006. (accessed 14 August 2022).
MLA Format
Center of Gravity. San Francisco: Exploratorium, 2006. 4 Aug. 2006. 14 Aug. 2022 <>.
BibTeX Export Format
@misc{ Title = {Center of Gravity}, Publisher = {Exploratorium}, Volume = {2022}, Number = {14 August 2022}, Month = {August 4, 2006}, Year = {2006} }
Refer Export Format

%T Center of Gravity %D August 4, 2006 %I Exploratorium %C San Francisco %U %O text/html

EndNote Export Format

%0 Electronic Source %D August 4, 2006 %T Center of Gravity %I Exploratorium %V 2022 %N 14 August 2022 %8 August 4, 2006 %9 text/html %U

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