July 20, 2012 - Three Arrows Cooperative Society

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Mud & Muck - Art & Science ↙↙↙ Photo of Barger Pond by David Ripps Saturday last, we were lucky to have Francesco Filiaci, biology teacher at the Calhoun School and master potter, spend the day at Three Arrows. In the morning he demonstrated making large pots on the wheel in the lower pottery studio to our own aspiring potters including Paul Stein, Rick Marcus, Danny Balgley, Sylvia Humphrey, Isabel Cordero, Nat Fay, and Susan Vladeck. All were very impressed with both his skill and his ability to explain technique. A measure of his success was the two bowls subsequently created by Danny using the techniques we all learned. ~~Susan Vladeck The Voice of the Hill July 20, 2012 4
After lunch Francesco drew a group of children and adults to the dock where he showed us all that Barger Pond is a healthy ecosystem since we have a number of species that are very sensitive to pollution, such as our beloved dragonflies. We pulled out a bucketful of muck, and nets and petri dishes of water and examined them for little creatures. Then we looked at tiny lake animals under microscopes and magnifying glasses. We saw pond skimmers—minuscule and small ones, whirligigs, 1/8 inch long fish and many more. Andy fished out a sunny for us and we put it in the fish tank so everyone could see it well. There was a big tadpole with two legs—half way to becoming a frog! We found out that the lake is clearer at the fishing dock than in the swimming area by lowering a black and white Secchi disk into the lake. We found we could just barely see it at two and a half meters down at the fishing dock, whereas we lost sight of it at a meter and a half in the swimming area. In the evening, after the children's performance, Francesco introduced us to the natural substances that allow fireflies to glow that cool (temperature) light. It was exciting to be able to mix the dried enzymes from sea fireflies and see them glow. There was a very interested group of Three Arrowsers—adults and children leaning over the table in Ernie's room. Francesco's enthusiasm was infectious! Let's think about building a cabinet for the science equipment on the dock so we can experiment every weekend and keep a log of what we find! Between the schmooze and the pond studies, we are really getting to know our Barger Pond this summer. ~~Sylvia Humphrey & Isabel Cordero The Voice of the Hill July 20, 2012 5
Page 1 and 2: Three Arrows Cooperative Society TH
Page 3: That Was The Week That Was Schmooze
Page 7 and 8: Saturday Night Family Program On Sa
Page 9 and 10: ↙↙↙ Three Arrows Calendar All
Page 11 and 12: Healthy Septic Systems You may have

July 20, 2012 - Three Arrows Cooperative Society

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