John writes “Stereo From the Air – I just finished a short tutorial on how to take 3D stereo photographs from on board of an airplane and thought I’d share it with you guys. It’s a fun little project for when you’re pretty much bored out of your skull and stuck in a tiny seat at 33,000 feet.” Link. Here’s another how to I wrote awhile back on making 3D images too. Testing for cosmic rays also passes the time.