Engineering | Science | Technology on Instagram: "Even though it looks harmless, still water can be dangerous. Because it isn’t moving, it can hide depth, mask strong undercurrents, and cover hazards like open drains, broken glass, sharp metal, or unstable ground. In flood situations, still water may actually be connected to fast-moving currents below the surface, creating a suction effect that can pull people or vehicles in. Still water can also be very cold, causing sudden muscle shock, and it

Hidden Gold Buried Beneath the Earth