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Variations on a Theme
102. Hipsters - Rotterdam 2008 from Exactitudes. In seeking their identity, adolescents try out a wide variety of different personas. These are often closely associated with changing appearance and...
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The Spirit of the Law
A You are the Ref strip by Paul Trevillion. Every week, artist Paul Trevillon poses, in text and cartoon form, some truly idiosyncratic situations that might come up in a soccer match in his You are...
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Why I [believe/don’t believe] in God
Image from the Opte Project. Andrew Zak Williams asks 30 believers and 30 non-believers why. Their answers do a great job summarizing the major arguments and philosophies of both camps. Theists assert...
View ArticleCreativity, Depression and Anger
[A]nger … triggers a less systematic and structured approach to the creativity task, and leads to initially higher levels of creativity. … [However] creative performance should decline over time more...
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Projectile Motion
Abstract A series of still photographs of a projectile (soccer ball) in motion were used to determine the equation for the height of the ball (h(t) = 4.9 t2 + 14.2 t + 1.25), the initial velocity of...
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Corner of 4911 Avenue and S. 9938 Street
That would at least be our address if we were on the “extended” Manhattan Street Grid, according to this website. The extended Manhattan street Grid. Just goes to show that everything is relative.
View ArticleHearing Color
Some people can hear with their eyes. It’s called synesthesia, and it happens when the different sensory systems get crossed. A new app, Sonified, lets you experience it, as the video below...
View ArticleNetworks versus Trees: Ways of Analyzing the World
Manuel Lima contrasts the traditional, hierarchical, view of the world (evolution’s tree of life for example) to a more network oriented perspective. One interesting part is the interpretation of the...
View ArticleStarting Algebra too Early?
There’s been a push for students to take algebra earlier and earlier, yet there are some serious pedagogic arguments that early algebra might not be a great idea for many, if not most, students. A...
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TechShop
Laser-etched map projections on wood. This September a TechShop branch opened up in St. Louis. I’ve been aware of these neat Makerspaces for a few years now, so it was a pleasant surprise when one...
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What is Real? A Math Seminar (Prelude to Imaginary Numbers)
We had a really nice, thoughtful seminar discussion in Algebra II, with the simple question: What is real? I did this as a lead into the topic of imaginary numbers (). The distinction between tangible...
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