Bitofact | Educational Facts and Videos on Instagram: "Smoke signal cans are emergency distress tools used at sea to make boats or people instantly visible to rescuers. When activated, they release a thick cloud of brightly colored smoke—usually orange—that can be seen from miles away by ships, helicopters, and aircraft, especially during daylight when flares may be harder to spot. These signals are commonly used once rescuers are already nearby, helping them pinpoint an exact location in open w