Walabot Sees Through Walls

When he needed to find out where a pipe was, your uncle Len used to punch through the wall and feel around with his hand. No, that wasn’t a dream, he really did that. The man was a neanderthal. These days even neanderthals have smart phones, and this android app lets them find out where pipes, studs, and wires are with no brute force at all. Huzzah.