Here’s a fun entry to add to your brain’s collection of “totally random facts about the world”: Nikon’s 52mm lens caps will fit neatly on most beverage cans. 52mm isn’t just a common diameter for camera lenses… it’s also an international standard diameter for can tops!

Sorry Canonites, your lens caps don’t really work for this.

Image credit: Photograph by kokotron and used with permission

3D Photo is hardly a useful app, but it’s a fun way to play with the camera on your iPhone. What it does is map your photographs onto geometric shapes, giving them a pseudo-3D effect by allowing you to move the shapes and view them from different perspectives. You can find it for $1 in the iTunes store.

(via John Nack)