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1Q40.u3 - Hoberman Sphere - Collapsing Star

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​1Q40.u3 - Hoberman Sphere - Collapsing Star

Preview
SelectSelected
Title1Q40.u3 - Hoberman Sphere - Collapsing Star
Objective

Demonstrate conservation of angular momentum for a collapsing and expanding sphere. ​

StatusAvailable
Assembly Instructions

Instructions
Suspend the Hoberman sphere and pulley assembly. Start it turning in the open position. Pull on the lower string to collapse the sphere and note how the sphere spins much faster. The string can be released to let the sphere expand again.
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Setup Time10
Operation Time
Preview Time5
Operation Instructions
ExportableYes
Demo on DimeNo
PIRA 200Yes
Export Instructions (if different)
HazardsNone
Analysis/Information
Category1 Mechanics
Subcategory1Q - Rotational Dynamics
Keywordscollapsing sphere, collapse, star, galaxy, rotational motion
Construction Information
 
Equipment TitleUse SHIFT+ENTER to open the menu (new window).
  
QuantityUse SHIFT+ENTER to open the menu (new window).
  
Hoberman Sphere large
1
string, pulley and swivel assembly
1
hoist
1
hoist key
1
Hoberman Sphere small - (for export)
1