Now Through Sunday Night. Black Friday Deals & Free Shipping! See the deals.
Home » Community » It arrived! » Half of a 120-cell
Search Search  
Show: Today's Messages    Show Polls    Message Navigator
Half of a 120-cell [message #33592] Wed, 31 August 2011 07:46 UTC
avatar henryseg  is currently offline henryseg
Messages: 224
Registered: July 2008
Go to my shop
Senior Member
The 120-cell is the 4 dimensional analogue of the dodecahedron. Just as the dodecahedron has 2-dimensional faces (12 pentagons), the 120-cell has 3-dimensional faces (120 dodecahedra).

This is a model of what you get when you take the 120-cell drawn on the unit sphere in 4-dimensional space, throw half of the sphere away then stereographically project the remainder into our 3-dimensional space.

To get the whole 120-cell back, take two copies of this, and glue them together along their boundaries. You can see lots of half dodecahedra on the boundary of the model which form whole dodecahedra together with their mirror image in the other half.
index.php?t=getfile&id=10844&private=0
index.php?t=getfile&id=10843&private=0


 
   
Previous Topic:EPIC FAIL cufflinks arrived
Next Topic:Tesla Defense Tower

Logo

Hello.

We're sorry to inform you that we no longer support this browser and can't confirm that everything will work as expected. For the best Shapeways experience, please use one of the following browsers:

Click anywhere outside this window to continue.