They don't all work!

Had a brain wave coming out of the revolving door at work...thought I'd try a slow-shutter app shot from inside the doors as I spun round (there wasn't anyone else there, honest)...this is the result.

It isn't quite what I'd hoped for (will try again one day with a shorter exposure time and steadier camera...I might even try taping my phone to the door next time), but I found the resultant image intriguing enough to post (with exposure turned down, and brightness/contrast ever-so-slightly increased).

At the very least, it'll save you from wondering what such an image might look like ;-)