Remarkable Alex, your idea for "The salt miner" is simply fantastic! 🌊 You've combined the power of heat vents and waves to extract salt from seawater in a super creative way. The idea of using hydroelectricity to spin fans shows great ingenuity. Keep dreaming big and tinkering with those ideas – who knows, you might just solve some big world problems one day! 😊 Keep up the great work!