![]() Often these descriptions employ topological properties: simple, countable characteristics that don’t depend on size or shape, such as how often strings in a knot cross. In the 20th century, researchers built on this legacy by developing mathematical descriptions of knots that distinguish one from another. ![]() The theory didn’t pan out, but the diagrams they drew of different knots, and their attempts to classify them, jump-started the development of modern knot theory. More than 150 years ago, Lord Kelvin - working with fellow Scottish scholar Peter Guthrie Tait - proposed that the chemical elements could be represented by different knots. Scientists have a long-standing fascination with knots. In a recent paper in Science, he and his colleagues used a new way of visualizing the forces inside tangled fibers to revisit an ancient question: What makes some knots stronger than others? This slip-up aside, Kolle has become quite the knot wonk. “I almost lost a boat because I got one knot wrong,” said Kolle, a mechanical engineer. In securing the rowboat, he must have tied the knot wrong. As he tacked across the water to retrieve the wayward vessel, he realized his mistake. Then Kolle noticed something was off: A rowboat tied to his boat had come loose and was drifting toward the horizon. If I lose any more girls, I hope it’s to old age.One sunny day last summer, Mathias Kolle, a professor at the Massachusetts Institute of Technology, took a couple of eminent colleagues out sailing. Hopefully all of the remaining 11 will survive at least until next spring, but preferably for a few years. □ We went from having three to having nine to having five, and now we’re at 11. We have lost two of the first six chicks we got this year to predators and another to it wandering off in the rain. Of the original three hens that we had, we lost one (my favorite, Lucy) to a predator on Mother’s Day. They were just too cute to pass up. So we got six new chicks: two Barred Rocks and four Arucaunas. The last batch that we had gotten were at least a week or two old. Wednesday, we went to get dog food and wound up at the local Rural King … Who still had chicks!!! Anyone who owns chickens knows that you just can’t pass up babies. We’d finally managed to get the temp and humidity to stay mostly stable. ![]() I checked them again last night, hoping that we had gotten at least one. At day 5, I candled the eggs … No progress at all. Second day, temp bottomed and humidity spiked. First day, the temp spiked and humidity dropped. We had 13 eggs total to try this experiment with. After we got everything all set up and situated, we moved the incubator inside next to our brooder where our current five chicks have been residing. We picked up a thermometer/hygrometer combo from the local Menards to make sure we could get everything set up and maintain the correct temp and humidity. We did some research online and came up with the idea of using a Styrofoam cooler, lamp, some wire and a bowl of water. ![]() When we brought the girls home, we also brought the eggs. For the last week she had them, she’d been keeping the fertilized eggs for us. □ My ex-mother-in-law had gotten a rooster a few weeks ago and put him in with my three hens that she was keeping for us. We decided to try a new adventure this week.
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