universe___education on Instagram: "- The post features a 22-second video demonstrating a foldable black plastic barrier deployed by workers to instantly seal a concrete-lined irrigation ditch, halting water flow in seconds for easy agricultural management. - Originating from rural China, this device resembles commercial products like Noaq Flood Barriers or Quick Dams, which use lightweight, expandable materials to control floods or irrigation without tools. - With over 824,000 views and enthusi