Freezing Rain in Downtown Atlanta

Midtown Atlanta today was covered in a layer of ice Wednesday morning. Where I live, near North Avenue and Piedmont, the roads were covered in an icy slush that didn’t seem to be very slippery; the few careful drivers that were on the roads were not sliding, often. I took a video of the traffic

Programming a Jam Jar Light

I’m working on a smiple LED mood light that changes colour based on its orientation to the local magnetic field and uses an accelerometer to switch the power on/off. The little contraption consists of a programmable NeoPixel strip, wired to a Flora micro controller, wired to a compass & accelerometer sensor, all powered by a

Experimenting with Group Work in On-Line Synchronous Recitations

If you are interested in knowing more about the work I do at Georgia Tech, this is a copy of a presentation (PDF) that I gave at the 2013 Joint Mathematics Meetings in San Diego, CA, about a year ago (a recent request for sharing copies of my slides prompted me to getting around to