Identify polytopes thread

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Identify polytopes thread

Postby Secret » Sat Aug 05, 2017 12:52 pm

Victoria park playground:
What is the nearest polytope that describe this shape? (The core/closest part in 4D is a truncated icosahedron btw)
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Re: Identify polytopes thread

Postby Mercurial, the Spectre » Sat Aug 05, 2017 4:49 pm

The steel truss curves into an icosahedron, but the blue parts make no sense (there are vertices with 3 edges on it), so it isn't a polychoron, rather a disconnected figure. You might be looking into an icosahedral pyramidal subdivision of the truncated 600-cell (tex).
SárHwās Hnáras táygʲasi Hr̥táy kʲa waĉatás samHatás kʲa ĵn̥Hyántay. Táy kʲitˢtáH mánasaH kʲa dádHn̥tay Hántaray práti bʰraHtrásya pn̥tHáH kriHánt.

All human beings are born free and equal in dignity and rights. They are endowed with reason and conscience and should act towards one another in a spirit of brotherhood.
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Re: Identify polytopes thread

Postby ubersketch » Fri Dec 15, 2017 1:08 am

This reminds me of rk's website.
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Re: Identify polytopes thread

Postby Klitzing » Fri Dec 15, 2017 9:57 am

Yes, indeed, nowadays there are lots of playgrounds with polyhedral trusses and some spanned in ropes for kids to climb therin.
I even remember that at my childhood there have been playgrounds with trusses of stacked cubes, mostly in pyramidal arrangement.

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