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Maxwell's Wheel


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it will be shown that the body is lighter during
the downward acceleration and interest the body of flywheel
is suspended under a kitchen scale at rest the scale is at
equilibrium after brief excitation it oscillates around this equilibrium position I
when the flywheel is released it accelerates downwards with the string unwinding from the axle the scale
shows a decrease in weight when the
flywheel which is the end of the string and
begins its upward climb the
jerk must be caught afterwards the scale oscillates around an equilibrium position indicating a smaller weight and this remains unaltered during the subsequent downward
motion the In order to avoid this
disturbing oscillation a small weight
is placed on the right hand so the scale will be in equilibrium during the downward motion addressed the scale then indicates to larger weight
upon releasing the flywheel with the scale initially held in the equilibrium
position the scale indicates equilibrium during the subsequent
downward upward and downward
motion note even during the upward
motion the Wheel accelerates
Computer animation
Computer animation
Computer animation
Computer animation
Computer animation


Formal Metadata

Title Maxwell's Wheel
Alternative Title Maxwellsche Scheibe
Title of Series The Physics Experiments of Robert Wichard Pohl (1884 - 1976)
Number of Parts 62
Author Lüders, Klaus
Pohl, Robert Otto
Beuermann, Gustav
Samwer, Konrad
Contributors Stickan, Walter (Redaktion)
Lechner, Kuno (Kamera)
Gerstenberg, Thomas (Ton)
Yousefpour, Abbas (Schnitt)
License CC Attribution - NoDerivatives 3.0 Germany:
You are free to use, copy, distribute and transmit the work or content in unchanged form for any legal purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
DOI 10.3203/IWF/C-14840eng
IWF Signature C 14840
Publisher IWF (Göttingen)
Release Date 2004
Language English
Producer IWF (Göttingen)
Production Year 2003

Technical Metadata

IWF Technical Data Video-Clip ; F, 1 min 59 sec

Content Metadata

Subject Area Physics
Abstract A body that is being accelerated downward weighs less than when at rest. This is demonstrated with a flywheel on a shaft suspended on one arm of a household scale (Maxwell's disk). It is suspended on one arm of the scale with two strings which wrap around the thin shaft. When the flywheel is released, it accelerates downward, and the scale reads a reduced weight. During the subsequent rise (the flywheel still accelerating downward!) the scale again indicates a reduced weight.
Keywords mechanics
accelerated motion
Newton's second law
Maxwell's wheel

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