Concerns over technology could see Las Vegas ground to a halt. The membership of the Culinary Union, which represents workers in the city's casinos, have voted to strike if a deal cannot be reached over the increasing use of technology in their workplaces as well as increases in wages and the strengthening of language around sexual harassment. On June 1 the contracts of 50,000 union workers expire, raising the possibility of the first casino worker strike in Vegas since 1984. That one lasted 67 days and cost more than $1 million a day. "We support innovations that improve jobs, but we oppose automation when it only destroys jobs," Culinary Union secretary-treasurer Geoconda Argüello-Kline said.

Spanish treasure fleets that traversed the Atlantic Ocean to the Americas and back were a 16th-century invention as important as free two-day shipping. Organized 70 years after Columbus's first voyage, the fleet was made up of several specialized ships with one primary goal: Exploiting the riches of the New World as efficiently as possible. The San José, the largest galleon and the flagship of one group of Spanish ships that started sailing in the 16th century, was big and -- thanks to 62 bronze cannons engraved with dolphins -- deadly enough to deter or destroy ships, whether pirates or rival nations. On June 8, 1708, during the War of the Spanish Succession, the San José's gunpowder ignited during a battle with British ships, sending 600 sailors to the bottom of the Atlantic Ocean -- along with gold, silver and emeralds from mines in Peru, a total haul valued at some $17 billion in today's dollars. It stands as one of the most expensive maritime losses in history.

A Spanish galleon laden with treasures worth £12.6 billion ($17 billion) that sank to the bottom of the Caribbean 300 years ago was found using an autonomous robot, researchers have revealed. The San Jose, sunk by the Royal Navy, gained a reputation as the'holy grail' of shipwrecks and was carrying one of the most valuable hauls of treasure ever lost at sea. The 62-gun, three-masted galleon, went down on June 8, 1708, with 600 people on board as well as a treasure of gold, silver and emeralds during a battle with British ships in the War of Spanish Succession. The San Jose was located by an underwater autonomous vehicle operated by the Woods Hole Oceanographic Institution (WHOI) back in 2015. The institution said it was keeping its involvement in the discovery quiet out of respect for the Colombian government.

San Jose, which was considered the "holy grail of shipwrecks," was located with the help of an underwater autonomous vehicle An autonomous vehicle was used in 2015 to locate a Spanish galleon that sunk 300 years ago off the coast of Colombia with $17 billion in treasure, the research team that helped in the discovery said on Monday. The San Jose, which was considered the "holy grail of shipwrecks," was located with the help of an underwater autonomous vehicle operated by the Woods Hole Oceanographic Institution. The institution said it was holding the discovery under wraps out of respect for the Colombian government. REMUS 6000 being deployed off the Colombian Navy research ship ARC Malpelo. The treasure--which includes of gold, silver and emeralds-- has been the subject of legal battles between several nations as well as private companies. Several weeks ago, UNESCO, the United Nations cultural agency, called on Colombia not to commercially exploit the wreck, whose exact location remains a state secret.