Thursday, July 8, 2010

Theme Thursday - Ball: A Hoberman Sphere

My friend Mike is wearing a Hoberman Sphere.  


The Thursday Theme for this week is some sort of ball or sphere.  A Hoberman sphere is actually an icosadodecahedron--a geometric solid consisting of 20 triangles and 12 pentagons. As the sphere expands and contracts, its hubs move in straight lines that radiate from the center. Each point of intersection reinforces the structure.  This particular sphere compresses to a 10 inch ball then smoothly expands to a 32 inch sphere.

You can read about the Hoberman Sphere in this article from Wikipedia.  If you search for "Hoberman Sphere" on YouTube you can find lots of examples.  One is HERE.  You can find them in toy stores and museum gift shops or order one from Amazon.com.

13 comments:

Brian Miller said... [Reply to comment]

and they are actually pretty cool to play with...though i dont think i ever put one on my head...happy tt!

Jill said... [Reply to comment]

I have seen these but would love to HAVE one to actually manipulate!

Ummm, your friend Mike needs a proper hat.

Sharon's Mum Anne said... [Reply to comment]

My first impression was Mike was trying to beat the record for clothes pegs attached to the face.
Never thought of a Hoberman Sphere, simply 'cos I'd never heard of one!

Kris said... [Reply to comment]

Poor Mike, he'll never score again!

tony said... [Reply to comment]

I Want One!

Yogi♪♪♪ said... [Reply to comment]

I've played with them before in museum gift shop but I've never worn one.

Elleona said... [Reply to comment]

C'est très drôle et Mike fait la grimace, lol !
Bisous.

Gayle said... [Reply to comment]

Somebody needs to teach your friend Mike how to accessorize. Everybody knows the yellow should be on the bottom so it stands out against the orange shirt. haha

Jingle said... [Reply to comment]

you are so funny.

Roy said... [Reply to comment]

Great take on the theme. I considered including Buckyballs at one point, but I stuck with flowers.

lisaschaos said... [Reply to comment]

That expression! LOL~

Betsy said... [Reply to comment]

LOL! Oh my...never seen one before!

Baino said... [Reply to comment]

Love those things and never knew they had a name/purpose. Great photo too!