How the Heavy Gustav Railway Gun Became the Most Powerful Artillery Ever Created

China Insider on Instagram: "Imagine floating on a cruise ship… and then sailing straight into one of the world’s largest engineering projects 😮. That’s the Three Gorges Dam in Hubei, China — the biggest hydroelectric dam on Earth. Stretching more than 2 kilometers across the Yangtze River and standing 185 meters tall, it’s a project so massive it can generate about 100 terawatt-hours of electricity a year ⚡. The scale is hard to wrap your head around until you see it in person: your ship feels