
Photograph: South End Knitters
Today I am thinking about the South End Knitters, the stealth street artists who wrap their knitting around parking meters and fire hydrants and telephone poles.
Writes Linda Matchan in the Boston Globe, “The South End Knitters’ weekly meetings at a Washington Street café seem innocuous, but don’t be fooled. Over knitting needles and yarn at the long table they’ve commandeered, they are contemplating something far more mischievous than a sweater. They’re graffiti knitters, and they’re plotting their next target. …
“As with graffiti, no two tags in the yarn-bomber subculture are alike. They range from sleeves on parking meters to tubes on tree limbs to sweaters on statues: A recent high-profile example is the neon pink sweater that the New York street knitter Olek crocheted in December for the 16-foot ‘Charging Bull’ statue on Wall Street.”
What put me in mind of the South End Knitters was an extraordinary post at the WordPress blog Pickled Hedgehog Dilemma, which describes a crochet effort that is drawing a lot of attention to the plight of vanishing corals.
Concerned about the effect of global warming on reefs, Margaret Wertheim and her twin sister got an idea that involved “crocheting corals. They used a crocheting technique invented by mathematicians in 1997 to model hyperbolic shapes called hyperbolic crocheting. … This ended up being a perfect technique for producing coral reproductions. …
“They crocheted a lot of corals,” continues Pickled Hedgehog, ” then they did something to change the world. They shared their corals with art museums. They got a community in Chicago to crochet with them. Then the crafting became a movement and groups all over the world started to crochet corals.”
Read Pickled Hedgehog Dilemma’s illustrated summary here. And if you have the time, this TED talk is super.
Pickled Hedgehog Dilemma

You might be interested to see the talk by that mathematician who first crocheted hyperbolic plane:-)
http://hyperbolic-crochet.blogspot.com/2012/07/my-tedxriga-talk-transcribed-full.html
best regards-Daina
Splendid!