In this short post we want to show you what you can do with a pretty nice free app for iOS devices. iMotion HD lets you take time lapsed photos of anything you want and you can decide the interval between shots from 0.1 seconds to 1 day, but what is quite nice is that you can trigger the capture of events when the noise reaches a certain level. This is particularly handy, if you wanted to capture something like an animal approaching an area, or something similar, and it make it a really nice outdoors learning tool.
Here is something quick I did in my kitchen, just to show the potential of this app. Please let us know how you use this app and if you have other ideas for scientific enquiries, or indeed in other subjects!