## Knocker device remotely "knocks on wood" using smartphone app ## Share: Designers Shashwath Santosh and Nithin Eluvathingal have created a small remote device called a "knocker" that attaches to a tree and knocks on wood from afar to explore well-known superstitions. The conceptual device "knocks on wood for you" when wood is out of reach, according to the design team. It plays on a popular belief that this action rids people of the bad luck gained from saying a future outcome aloud. "Some believe talking about good luck ruins it unless you knock on wood," said Santosh and Eluvathingal.…