Looking for water
Water is the most basic element for survival. If the amount of water the soldier consumes during training or actual combat does not meet the needs of digestion, breathing and perspiration,
Water is so important to the human body, so the first thing to learn in training is how to maintain the body's moisture. In order to minimize moisture consumption in the body, the following measures can be taken: more rest and less activity; avoid direct sunlight, try to travel at night, stay away from high-temperature surfaces such as rocks under the sun; strictly follow plans for water use, etc. Wait. Others are measures that are not well-understood for the crowd: don't talk, for example, because breathing in your mouth can make you lose water. Do not eat or eat as little as possible. If the body does not get water, body fluids will be transferred from the vital organs to digest the food, which will accelerate dehydration, while greasy foods are difficult to digest and require a lot of water. Do not drink or smoke because it uses organs to consume a lot of water.
Finding natural water sources in temperate countries such as the United Kingdom is a relatively easy task. In addition to a large number of artificial water sources, there are numerous rivers and lakes in temperate regions, and natural rainfall is also a rich source of water. Although British water sources are in very good condition, new players are still Learn to find water in the poorest environment.
Be careful about open-air water sources, as many of them may be naturally or man-made. The water is poisonous and it is no longer suitable for drinking. We can use various signs to determine if the water source is toxic. For ponds with no living water, no green plants growing in the surrounding environment, or other water sources with residual animal bones, be wary. The water meters of such water sources generally have odor-emitting air bubbles. These signs indicate that the water source has been polluted. No longer suitable for drinking. No matter what kind of water source you find, use a purifier to purify the water and drink it. If there is no activator, you can also use cloth to filter the water, and then heat the water to boil for 10 minutes so that most impurities in the water can be eliminated.
Of course, in many cases you don't have time to do so much preparation. You can also find water in some other way. They are also safe and convenient. The riverbeds of many rivers are covered with stones. The water quality of such rivers is generally good, and of course natural rainfall is a better source of water. Therefore, try to collect as much rain as you can during the water-seeking process in the wild. You can soak your clothes with water and then unscrew the water. You can also use some hollow trees and cup-shaped plants to collect rainwater. Such plants can also store large amounts of water, such as bamboo, cactus, and palm. Therefore, soldiers should understand the distribution of various vegetation in their area of ​​travel.
Sometimes soldiers do not find open-air water suitable for drinking. At this time, there are only three ways to find water: underground water, condensation water, and water in plants. Finding groundwater sources is not an easy task. Only trained people can find groundwater sources in deserted fields. The first place to look for groundwater sources is the riverbed area where rivers and streams have already dried up. Although the surface of these places is already waterless, abundant groundwater can often be found under their surface.
Indigenous inhabitants of the Kalahari Desert in Africa use a very special method to find sources of groundwater. They dug a big pit down from the ground and dug until they reached the damp soil. Then they inserted a reed into the bottom of the pit and sucked the end of the reed exposed on the outside. It usually takes about 10 minutes to get from the reed. Pipe sucked into groundwater.
The procedural method of condensing water is more complicated, but this method has the effect of rejuvenation at a critical moment. There are two tools that can be used to condense water, one is a solar distiller and the other is a distilling bag. Both tools use one or two pieces of polyethylene film (such as a strong commercial bag). The solar distiller water extraction method is particularly suitable for desert areas, and the distilling bag water extraction method is more environmentally friendly. You can only use this method in areas where plants are luxuriant. The following describes the use of two types of distiller.
Solar Distiller: Dig a pit about 90 cm in length and 45 cm in depth on the ground. Put a collector in the center of the bottom of the pit. Put a plastic film on the pit and fix the film around the pit with stones or sand. Then, Hanging a stone in the center of the plastic film ensures that the plastic film is curved so that water droplets can smoothly slide to the center bottom and fall into the collector. The sun's irradiation raises the temperature of the moist soil and air inside the pit and vaporizes to produce water vapor. The water vapour gradually saturates, contacts with the plastic film and condenses into water droplets and slides down into the collector. This method can collect approximately 1 pint of water in one day.
Distillation bags use the same principle as the solar distiller, and the difference between them is that the distillery bag collects moisture by condensing the plant's moisture. Put a plastic bag on a sturdy tree branch with dense branches and leaves. When placing the bag, make sure that the mouth of the bag is upward and the corner of the bag is downward. This way it is convenient to receive condensate produced by transpiration. Moisture can be collected by placing a polyethylene film on any well-grown plant. Because water vapor generated by transpiration rises when it comes into contact with the film, it will condense into water droplets when it is cold. The condensed water should be allowed to flow into the bottom collector along the inner wall of the membrane. Do not let the leaves touch the membrane, otherwise it will collide with the condensation of water. Even the freshly cut leaves of fresh plants are placed in large plastic bags. Condensation can also occur when the temperature rises. With a clean stone pad under the leaves, you can facilitate the collection of condensed water. Tighten the bag with stones and use an elastic pad to hold the top of the bag so that the leaves do not touch the bag surface. When branches and leaves become pods, they can be carefully replaced with fresh ones.
Soldiers are generally able to meet their own water needs through the various water extraction methods described above. Once the drinking water problem is solved, the next step is to look for food.
To be continued...
Polyester Fabric,Microfiber Fabric,Oxford Fabric
Microfiber Fabric Mini Matt Co., Ltd. , http://www.printedseries.com