Tapping Morse code is a great way to signal for help in a confined space. Try tapping on a window or on a pipe by using the following method: tap three times fast, then three times slow, then three more times fast. A signal mirror is a reflective device that uses the sun or other light source to send a light signal to a second party.

Dunnington, G. Waldo (2004). Carl Friedrich Gauss: Titan of Science. New York: The Mathematical Association of America. pp.122–127. ISBN 0-88385-547-X. Mance, Henry (10 February 1872). "The Heliograph or Sun Telegraph". United Service Institution of India. 1 (5): 123–130. hdl: 2027/mdp.39015035103855 . Retrieved 16 June 2013. That enabled a mirror to be used to send Morse code, the same system of dots and dashes developed to transmit messages over telegraph wires. It is advisable to store mirrors dry in high-humidity areas like your bathroom. If you have glass signal mirrors, wrap them in bubble wrap once they are dry to protect them from breakage. Additional Tips and Considerations Importance of Practice SOS fires are a great way to draw attention to yourself, especially at night. Building three fires in either a straight line or in a triangle is the internationally recognized symbol of emergency distress. And be sure to build each fire approximately 100 feet from each other to reduce the chance of starting a forest fire. The last thing you’ll want is to be running for your life in the middle of nowhere. SOS Signals for Confinement in Trapped SpacesWhen the rescuer is making their descent, avoid flashing reflected light on them, which can cause momentary blindness to the rescuers and could lead to another accident instead of a rescue mission. Conclusion It's not just getting lost or stranded that leaves you needing rescue. It might not bear thinking about, but having a plan if you become trapped in a tight spot after a disaster, or end up the victim of a kidnapping situation might just save your life. a b An Improved Method in the Art of Signalling for Military and Scientific Purposes, The American Helio-Telegraph and Signal Light Company, 1887 , retrieved 1 June 2008 . Signal mirrors are available in glass or plastics (eg. polycarbonate). There are advantages and disadvantages to each material. Glass is brighter, more reflective, and is hard to scratch. The only downside to glass is that it can shatter. Take care of your gear and it will take care of you. Don’t stash it away, but get it out to get familiar with it if you are not using it every day.

While doing this, ensure that the aiming hole is where the bright light is. Alternatively, if the sun is not too bright or is lower on the horizon, stretch your arms outwards and aim with one eye shut. The larger the mirror, the more light you will reflect. You may want more light transmission if you are in a desert or maritime environment. Reflective material If you happen to have a whistle on you (or you’re blessed with the ability to whistle loudly with your fingers), proceed with these steps: Three long whistle blasts (which is “S”), followed by three short blasts (“O”), and then three long whistles once more (“S”).Use your other hand to position the mirror so that the reflection is aimed at your target. This could be a rescue aircraft, a passing boat, or a nearby search party. If you need rescue, flash your mirror three times. Three is considered a universal distress signal. If you’re trapped as a hostage where you’re unable to speak, you can try blinking for help! This clever SOS signal can be done by blinking fast three times, blinking slowly three times, and then blinking fast three times once more. The Best Glide ASE Military Grade Glass Signaling Mirrors are the Mark 3 Emergency Signal Mirrors MIL-M-18731E Type I (2 x 3) and Type II (3 x 5). The Type I (2 x 3) carries the designation NSN: 6350-01-455-6695 and the Type II (3 x 5) carries the designation NSN:6350-01-455-6671. There you have preppers. Outdoor adventures should be as fun as they are responsible for ensuring safety. The only thing better than one outdoor adventure is another one, and a signaling mirror is just what you need to survive in case of distress to see another day.