A group of Spanish archaeologists have made detailed diagrams of a 2,500-year-old Phoenician shipwreck to help work out how best to recover it from the sea before a storm destroys it forever.The eight-metre-long Mazarron II, named after the municipality in the southeastern Spanish region of Murcia where it was found off the coast, is a unique piece of ancient maritime engineering.
As companies race to expand renewable energy and the batteries to store it, finding sufficient amounts of rare earth metals to build the technology is no easy feat. That’s leading mining companies to take a closer look at a largely unexplored frontier – the deep ocean seabed.A wealth of these metals can be found in manganese nodules that look like cobblestones scattered across wide areas of deep
HamiltonJet has unveiled a new range of high-efficiency waterjets, starting with the LTX36 model. Optimized for medium- and low-speed operation, New Zealand-based manufacturer said it has produced the first waterjet to rival the energy efficiency and bollard pull of the best propeller-based systems between zero and 30 knots.