Scisense on Instagram: "Watch the world’s longest train captured from above, and it looks less like a train and more like a moving steel serpent stretching across the landscape. From the aerial view, you can see its endless line of carriages snaking through mountains, deserts, and open plains without a single break. The sheer scale is mind-blowing—each section disappearing over the horizon while the front is already miles ahead—showcasing a feat of engineering and logistics that’s almost hard to