> Found the Kindle using the sniffing technique described below. I read this and, having a puppy at home, I interpreted it as actual sniffing i.e. scent detect

> Found the Kindle using the sniffing technique described below. I read this and, having a puppy at home, I interpreted it as actual sniffing i.e. scent detection (since I've been thinking about training her in that). The only question in my mind was whether he had trained a dog to do it or did it himself Feynman-style.