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8C10.05 - Cosmological Redshift

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​8C10.05 - Cosmological Redshift

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Title8C10.05 - Cosmological Redshift
Objective

​To demonstrate the apparent redshift (lengthening of wavelength) of light due to cosmological expansion of the universe.

StatusAvailable
Assembly Instructions

Connect the air supply to an on/off switch.  Attach the balloon with the sine wave written on it to the end of the air supply and mount it in a 3-fingered clamp.  Be sure to go over the inflation procedure with professor to ensure they do not blow up the balloon.​

Setup Time10
Operation Time5
Preview Time5
Operation Instructions

Turn on air supply.  Slowly ramp up speed of air, be aware there is some lag time in response of air supply output.  Do not blow up balloon.​

ExportableNo
Demo on DimeNo
PIRA 200No
Export Instructions (if different)
HazardsNone
Analysis/Information

Fabric of space/time expansion causes lengthening of wavelength of light -> showing a redshift

Category8 Astronomy
Subcategory8C - Cosmology
Keywordsredshift, cosmology, cosmic, expansion, universe
Construction Information
 
Equipment TitleUse SHIFT+ENTER to open the menu (new window).
  
QuantityUse SHIFT+ENTER to open the menu (new window).
  
air pump - mounted on wooden base
1
switch - on/off with power outlet
1
bench clamp
1
clamp 3-fingered
1
balloon - with sine wave painted on
1
zip tie
1