Comments on: The Correct Recycling Symbol http://pthree.org/2010/03/31/the-correct-recycling-symbol/ Linux. GNU. Freedom. Fri, 17 May 2013 20:46:35 +0000 hourly 1 http://wordpress.org/?v=3.6-beta2-24176 By: Gavin http://pthree.org/2010/03/31/the-correct-recycling-symbol/#comment-115455 Gavin Thu, 24 Feb 2011 23:04:42 +0000 http://pthree.org/?p=1336#comment-115455 This struck me a few weeks ago. I struggled to translate the bastardization of the recycling logo on a trashcan before realizing that the shape was impossible in three dimensions. Either the manufacturers have discovered a method of folding space or something is intrinsically wrong. Great post! Maybe some young engineer will fix it one day…

]]> By: alphakamp http://pthree.org/2010/03/31/the-correct-recycling-symbol/#comment-110785 alphakamp Thu, 01 Apr 2010 12:27:11 +0000 http://pthree.org/?p=1336#comment-110785 Some people will recycle, some people wont… regardless of a symbol. Neat that you caught this though.

]]> By: The Significance of Ganesh in Hindu Culture | Modeling Process.com http://pthree.org/2010/03/31/the-correct-recycling-symbol/#comment-110784 The Significance of Ganesh in Hindu Culture | Modeling Process.com Thu, 01 Apr 2010 10:52:32 +0000 http://pthree.org/?p=1336#comment-110784 [...] Aaron Toponce : The Correct Recycling Symbol [...]

]]> By: Steffen Michalek http://pthree.org/2010/03/31/the-correct-recycling-symbol/#comment-110783 Steffen Michalek Thu, 01 Apr 2010 09:45:35 +0000 http://pthree.org/?p=1336#comment-110783 Hi! Thanks for the stimulation to look carefully at the meaning and shape of the recycling logo! However, since both, the original and the wrong logo contain an odd number of half-twists, both are Möbius-bands. So, the last half-twist does not cause the Möbius-characteristic, but it neutrals one of the preceeding half-twists. That’s why the result is only half-twisted rather than one-and-a-half-twisted.

But anyway … this was a really funny and appealing topic for 1st of april to let people puzzle about topology. Me, personally, needed to take a stip of paper (one side marked by a long line along the paper) to be confident in my view to see both as Möbius-bands. – Thanks! :-)

]]> By: Abaris http://pthree.org/2010/03/31/the-correct-recycling-symbol/#comment-110782 Abaris Thu, 01 Apr 2010 09:14:35 +0000 http://pthree.org/?p=1336#comment-110782 Indeed, the “wrong” logo is a Moebius band, too. It is one sided. Just imagine yourself on some fixed starting point, running along the arrows. You will traverse both “sides” before reaching the starting point again, meaning that there really is only one side to it.

]]> By: Dennis Ranke http://pthree.org/2010/03/31/the-correct-recycling-symbol/#comment-110781 Dennis Ranke Thu, 01 Apr 2010 08:54:08 +0000 http://pthree.org/?p=1336#comment-110781 Isn’t the wrong logo one sided, too? As far as I can see it actually twists 1.5 times.

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