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8C10.15 - Expanding Universe Balloon

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​8C10.15 - Expanding Universe Balloon

Preview
SelectSelected
Title8C10.15 - Expanding Universe Balloon
Objective

An inflating balloon demonstrates the geometry of the expanding universe.

StatusAvailable
Assembly Instructions

Instructions
Attach the balloon to the air pump's hose. Cable tie the balloon on. Mount the balloon in mid-air by clamping it with the 3-finger clamp.

Setup Time10
Operation Time5
Preview Time5
Operation Instructions

Operation Steps
1   Turn on the pump, and dial up the variac to ~60
Instructions
Turn on the variac and dial to ~60. It will seem like very little is happening at first, but this is the best way to warm up the pump and get a gradual inflation (otherwise when the pump warms up it will almost pop the balloon instantly).

ExportableNo
Demo on DimeNo
PIRA 200No
Export Instructions (if different)
HazardsNone
Analysis/Information
Category8 Astronomy
Subcategory8C - Cosmology
Keywordsexpanding universe balloon, 3-D, expansion, stellar distance
Construction Information
Construction Links
Balloon
 
  
  
air pump - mounted on wooden base
1
bench clamp
1
bench rod
1
rod clamp
1
clamp 3-fingered
1
balloon - giant universe
1
cable tie
1