LEGO Technic Deep-Sea Research Submarine Toy - Building Toy for Kids, Boys and Girls, Ages 9+ - Creative and Unique Gift Idea for Birthdays - Movable Propellers and More - 42201

Technology Explained on Instagram: "ollow @explaining.tech to learn everything about technology one post at a time 🧠⚙️ Building a fully functional LEGO RC Submarine is an elite engineering challenge that requires mastering hydrostatics and waterproofing. To keep the electronics bone-dry, builders often use a “dry hull” design, housing motors and batteries inside a sealed container like an acrylic cylinder or a glass jar. The real magic lies in the magnetic coupling: instead of drilling leaky ho