Super simple and yet kind of cool. You need a machine screw, a wing nut, some scrap wood about 4″x.5″, and some stretchy elastic. We cut ours on a Helix laser cutter. Directions and Files Here. Check the video on Twitter to see how it moves. Article from American Mathematical Association here. Also if you don’t want to make from
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Comments from the MOXI Museum in Santa Barbara. They liked the Golden Ratio Calipers and decided to make their own and set up a self guided exhibit. They’ve got some great advice for any museum interested in doing this too. “I have in fact used your files in a crude way and brought out some ratio calipers in my museum’s
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We are excited to bring two backpacks full of MathHappens goodies for door prizes. Paola Garcia and I are co-presenting a session with star Austin High math teacher Mardi Nott. Participants are going to look into each others eyes and discover the power of geometry to analyze light reflections, using similar triangles to reveal the height or distance of objects
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I still need to track down “authorities” to verify, but this appears to be a real handwritten letter or speech written by a Robert Creuzbauer, a Texas surveyor about the VARA and Chain standards for measuring land. It gives a very clear description of the Vara standard and how it relates, or doesn’t relate to the Chains used elsewhere and
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Part of getting ready for MathHappens @ The Bullock on May 6th involves having T-shirts we can wear before, during, and after the event; before to get the word out, during so event staff can be identifiable, and after to have a souvenir from the event. Our friend, Alex Morrison, brought a couple screens along with ink, while Abdul gathered a
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These are some of the constructions we found in the MOMO Showpalace that we want to try for ourselves with visitors to the Science Mill’s Homeschool Day. We are excited to bring these to the windows of the Hill Country Science Mill this month! Team: Joshue Alvarez, Abdulkarim Bora, Josephine Sheng
Neill Cochran House Museum is hosting the Pythagorean Tables! They are newly installed September 5 2017 and we can’t wait to play on them.
It was dry and hot as well. In 90 + mid June heat we went out to the Austin Nature and Science Center. We needed midday sun to find true north using the plumb line contraption you see below. It worked really well. We etched a line in the wood at the base so we’d have a 90 degree cross
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