Chilean robot finds "Robinson Crusoe" treasure

A Chilean robot named Arturito has discovered what may be the biggest treasure in history, buried 50 feet deep on the archipelago that inspired Daniel Dafoe's novel Robinson Crusoe (where Scottish sailor Alexander Selkirk was marooned in 1704 for four years). The treasure, comprising hundreds of barrels of gold, silver, jewels and other Incan artifacts worth an estimated $10 billion, is believed to have been buried by Spanish sailor Juan Esteban Ubilla-Echeverria in 1715 - and then discovered and reburied a few years later by British sailor Cornelius Webb. The robot, developed by Wagner Technologies, uses GPR (aka georadar) to detect subsurface objects via microwave radiation, and has recently made headlines in Chile for solving some of the country's biggest criminal mysteries. (The Guardian has more details.)