Planets – XKCD

Fantastic comic by xkcd, as usual. But the most interesting part is the hovertext: Planets are turning out to be so common that to show all the planets in our galaxy, this chart would have to be nested in itself–with each planet replaced by a copy of the chart–at least three levels deep. So, approximately […]

Skallops and Regular Polygons

So my skallops arrived and I’ve had some time to play with them. Geometry teacher’s dream. Ok. Will the following setup make a polygon if I keep the same angle and keep adding on? What about 30 degrees? 45, 60, 75, 90, 105, 120, 135, 150, 165, or 180 degrees? Some completed shapes: Square Hexagon […]

Google Blockly

From @joshgiesbrecht , fantastic web app from Google. Blockly is a web-based programming environment that allows you to export the code as Python, Javascript, Dart (anyone outside of google use this??), or XML (wow ugly code). Blockly was just released a couple of days ago so it’s still rough around the edges, but has a nice […]

Move The Turtle (iOS)

Move The Turtle. The “game” portion of this app is pretty simple, but it comes with a programming interface which is very easy to get into. Fun stuff. After 10 minutes of tweaking: