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tinyshopww.blogspot.com | ||
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divisbyzero.com
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| | | | | Roll a circle around another circle of the same radius. A marked point on the first circle traces a curve called a cardioid. (In the figure below we rolled the orange circle around the red circle to draw the green cardioid.) This beautiful heart-shaped curve shows up in some of the most unexpected places. Grab... | |
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davidffisher.com
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| | | | | Tutorial and Plans for Building Your Own Horse I designed and built my first bowl horse 20 years ago and I've loved using it ever since. Although I call it the "bowl horse" because I depend on it mainly for bowl carving, I also use it for all sorts of woodworking tasks. Put simply, it... | |
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jaydaigle.net
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| | | | | We continue our exploration of what numbers are, and where mathematicians keep finding weird ones. In the first three parts we extended the natural numbers in two ways: algebraically and analytically. Those approaches gave overlapping but distinct sets of numbers. This week we combine them to get the complex numbers, and see some hints of why the complex numbers are so useful-and so frustrating. | |
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polymathically.wordpress.com
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| | | This week's challenge is all about minimalism, something which my photo collection surprisingly lacks. Until I find something better, here's a candle currently decorating my entry hall. | ||
