Stepping Up in Deltaphone

Recently I added chords to Deltaphone, which required me to rethink how I was structuring the blocks to play notes. Previously, the play block came in two forms. There was a form for an absolutely-specified note, like “play C natural in the fourth octave.” And there was a form for a relatively-specified note, like “play […]

Kookaburra in Deltaphone

Though we have been in Australia for several months, we have hardly seen any of its unique wildlife. Fearing that we’d return home with no distinctly Australian experiences, we set out to find some animals. Given the number of news reports I’ve heard about kangaroos injuring humans, we decided to take it slow. We headed […]

Sensing Shapes

In the late 1600s, William Molyneaux posed a question to a friend: Suppose a man born blind, and now adult, and taught by his touch to distinguish between a cube and a sphere of the same metal, and nighly of the same bigness, so as to tell, when he felt one and the other, which […]

Flips and Twists

Living in the Southern Hemisphere after a lifetime in the north draws one’s attention to geometric concerns. I regularly trace a path through time and space to remind myself if I am 15 hours ahead of my colleagues back home or behind. Different stars light up the sky. Many phenomena, like the seasons, flip. But […]

Stolen Rings

Recently, I stole something precious from a friend. I was sitting in Andy’s office, and there it was. An interesting shape. Three rings nestled inside each other. They could rotate independently, but if any translated, the others would follow. I had to have these rings. So, I stole them. Well, I stole the idea of […]