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8C10.12 - Expanding Universe in 2-D

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​8C10.12 - Expanding Universe in 2-D

Title8C10.12 - Expanding Universe in 2-D

​To demonstrate the geometry of the expanding universe in 2 dimensions using a laser and a grid pattern.

Assembly Instructions

No Assembly Required​

Setup Time2
Operation Time5
Preview Time5
Operation Instructions

Turn on the laser, be sure not to shine the audience, and start close to a wall or flat surface that is visible to the students.  As you take steps away from the wall, see as the grid expands in both dimensions equally.​

Demo on DimeNo
PIRA 200No
Export Instructions (if different)
HazardsNone, Light Hazard - Laser Radiation Class IIIB
Category8 Astronomy
Subcategory8C - Cosmology
Keywordsexpansion, universe, two, dimensional, box grid
Construction Information
laser - green, 5mW with mounted box grid diffraction pattern