สารคดี สำรวจโลก ตอน ต้นกำเนิดทะเลทราย | Next Step

Don't miss a good clip, just subscribe and don't forget to click the bell to wait for the new clips. The worm, which is hanging from the sand. More than millions of grains of sand are tightly packed together, so even the wind and waves can have little effect on them. It is the size of a water drop and is as old as the earth, and almost as hard as a stone. This is the effect of the weather, which is very special. Which computer manufacturing factory does not want to use the silicon in the sand? These grains of sand must be scanned by a camera, which is expanding many times and studying closely. What is not ordinary and not interesting will reveal the details of their origin, their journey, as well as their magic spells. A star, a star full of sand, which shows us the appearance of our world in the first century. The image that has a fine line reveals a curve on the surface of the skin, which was once formed by the flow of water. And today there is only the wind. What makes astronomers interested in the sand, not just the dust and the amount of sand on the star, but it is a kind of sand that looks like it can move in a shape similar to what is found on our planet. The sand always occurs on the surface of the earth. Today, the driest area on our planet is in the tropics of Cancer and Capricorn. And there the air will float up in a low-pressure area, and let the rain fall and fall down again. But the hotter air makes the clouds spread apart instead of forming a cloud of rain, and it covers a large area as wide as the European continent. The Sahara Desert is the largest desert. Sometimes the driest conditions do not occur only on the surface of the earth, but also occur in remote areas, such as the Taglamakan Desert in the northeastern part of China, which the Himalayan mountains that are far away prevent the rain clouds. The Sahara Desert can occur on the surface of the earth, such as in the southeastern part of Africa. The meeting point of the cold Bengula River from Antarctica and the warm water in that area causes the dense water to float in the Atlantic Ocean and move towards the surface of the Mekong Delta. The Namibian Gulf of Namibia is one of the most desolate seas in the world. For millions of years, the area around the Gulf of Namibia has been more humid than it is today, and the result is dense weather. The rocks that have been broken and washed into the Atlantic Ocean by the water can be seen from the stars. In just a few years, due to the high amount of rain, the waterways are still close to the shoreline. The thick layer of dry water in the Gulf of Namibia that used to be a waterway eventually disappeared. The sand spread in all directions. The sand is 300 meters high. The wind from the south, the east and the west create an eye-opening layer of sand. This layer of sand makes the Namibians interested in the sea, such as the French astronomer Pierre Laurent. The sand grows beautifully from the movement of the wind. In fact, what makes the Namibians interested in the sand is that they have seen a lot of sand, which all look very similar. And they think that in each case, the sand is created by a complex mechanism like a rock, but the sand is easily formed by the wind. Previously, the British astronomer and the commander-in-chief of the army, from the 1930s, he went deep into the farthest part of the Gulf of Namibia. Soon he found what he was lost in, the relationship between sand and wind, which can change the sand sea in many ways. But how does the sand grow when it grows higher and higher? Why do they cling to the new sand like powder? In 1939, Ralph Bagnall published his discovery of the sand and how it moves. At that time, he did not know that this would become the current sand sea discovery standard. In the south of Namibia, two German astronomers are studying how the wind changes the shape of the sand. The sand looks like a wave on the sea that is not calm. Their discovery means that Ingrid Stengel and Silver Trump must lie down or kneel on the sand time and time again. The shape of the wave is a wave that will continue to move until the next wave changes or erases it. The low pressure area makes it certain that there will always be rain in the south of Africa. During other times, all kinds of sand walk along the coastline. But the rain is too late for the brown trees in this dry low-pressure area. For many years, they have been cut off from the water by the sand. The slope of the sand at 45 degrees is almost the same as the image of the desert. The old sand is red while the black sand is black. The colors of the sand are mixed with the sand on the surface of the sand. Ingrid Stengel finishes her work before the sand starts to melt. A few hundred kilometers away, there is a road that looks like a train going straight to death. The Karahari Desert has sand that flows from Botswana to Namibia. There is no new sand since the end of the last ice age. Only 30 or 40 centimeters of the old sand is left. You can stand on the sand and draw pictures with a stick and feel disgusted with the sand. The Karahari sand has been exposed to humidity and moisture for a long time. The red color of the sand is because of the iron oxide. The size of the sand is 0.1 mm. The long journey of the sand makes the sand round. At the beginning, the sand is smooth and the edges are curved. When you see the sand you will know that it is because when the sand particles collide with other particles, they will form a layer of sand on top of each other. There are only two types of objects that can withstand such a strong collision, namely quartz and pebbles. The pebbles are difficult to find, but more than 98% of the sand in the sea is actually made up of quartz. The sand is an interesting material. When it is stimulated by a 60 Hz high frequency sound, it will sink and move. With a magical spell, the sand particles will line up in size. The harder particles will be pushed up by the finer particles. 60 years ago, Ralph Bagnall discovered that most of the sand fell near the ground. Its movement is determined by size and wind force. The large particles spin, while the smaller particles drift through the air in a curve. When the small particles fall, their force will send other small particles up into the air, which is the process that causes the whole land to move. The Noli from Namibia are located in the south of the country. Both are familiar with this land, which was once a place that attracted many explorers. But this area must be driven through with great caution, which Chino Noli is very familiar with. You are familiar with sand. You know that when the wind changes direction, the sand in the middle of the sand will be soft, and the sand will be soft in the place where the large particles are stuck. The harder the sand is, the softer it is. But sometimes you are wrong. That is why we always say that it is better to stop and walk with it. Before we see this, let's take a look at the Noli. Astronomers, such as Ingrid Stankel, call it a gust of wind. You can see it from the surface of the broken glass, which is an example of a gust of wind that still happens to this day. The edges of the cracks used to be sharp, but they were made curved. The surface is smooth. What happens to the front window of a car in the middle of a sandstorm will turn into dust in a minute. In another corner is this gust of wind. It is well known that the wind cuts thin stones and breaks them into small pieces for thousands of years. The people of Bormona have been involved in the industry since the time of the formation of the stone. The most valuable mineral exploration in the world took place here 70 years ago. The raw stone and the sand stone were created here, although they are of different quantities. But today, the sand has covered the empty space again, which was once excavated by humans with great effort. Buildings were built in every area where the sand was changed. In just one year, the sand would swallow these buildings and disappear. The way the sand moves is measured by what is called the sand deposit in the wind tunnel of the area where the movement occurs. Before World War I, this area produced one in five stones in the world. Today, this treasure can be found from the sand in the Mahasamut, which is not far from Chai Phang Nakh. Like the area where the foundation of the work was established in the old days, the sand and the wind are still under control. By working with computers in Paris, the archaeologist Gerd Sauermann created a small sample of the sand to see how it could change its shape. The sand has a shape similar to a crescent moon, which is well known in the name of Bakhan. The side peak of Bakhan is located in the middle of the sand. When a number of Bakhan come together, a large number of sand will change its shape to a less moving shape. Another special feature is the elasticity. The area under the wind will tilt in the form of a movement with many errors. The image created this night shows how it is. For many years, the sand that can move has been created by the wind. In order to do so, all of it will spread out. The larger the sand is, the slower it moves. The sand that moves around creates the image of the sand sea that we see. But in fact, there are many other things that are beyond that. They can form in an area that does not have much sand but there is a strong wind that pushes the sand away. The sand here is from the Mahasamut. Some of it is washed out of the rocks in the Chai Phang area. Many minerals, including that stone, are swept into the sea by the Orange River south of Namibia. These objects will be swept up to the north by the water. The Bakhan sand of the Namibian sand will pile up on the beach and expand. The sand will spread out in a small area and sometimes, it will be very deep. The sandman, Pierre Long, studied this phenomenon. The sand is like a living thing. When you are in the sandstorm or the sand sea, you will see how it changes and how it moves. You will see that the sand moves along the shore and flows down slowly into the sand. It is like a living thing. In the laboratory of the movement of the sand, two young scientists are creating the movement of the sand on the beach. They use sand grains to create the movement of the sand. Each grain of sand will be stable and when the sand is stable, the sand grains will start to flow down and the sand will pile up again at an angle of 33 degrees. The movement of the sand occurs from the top but opposite to the snow. The sand does not cause any danger. The sand will slowly move up and down the sand. The movement of the sand is stable and the movement of the sand moves along the shore and flows down at an angle of 33 degrees. The movement of the sand moves along the shore and flows down at an angle of 33 degrees. by reducing their water consumption to the lowest possible level. This intelligence and intelligence can enable humans to live in the deserts of Africa. For example, hunters and herders have been training animals since prehistoric times. The lives of these animals are determined by the movement of the clouds, the wind, the water, the sun, and the trees. When animals stop, humans stop as well. Insects and insects are the most valuable treasures of the herds. In the times of the herds, their culture and way of life are still there. The deserts are still there, but the changes in society can be seen clearly from the few lost herds that have disappeared. The new dangers are coming. They will get to know the new sea, which was created by humans, which destroyed some areas of nature. Today, the deserts are getting more and more isolated, even though they are located on the edge of the sea, where it always rains. In the past, the people who were exiled from the isolation process of the deserts were very few. They just kept their tents and continued on their journey. Today, there are traffic jams in cities, trains, and roads everywhere. And now, the deserts have become a dangerous danger zone. The Sabria Desert, located in the south-western part of Tunisia, is a perfect natural habitat for those who live on the sand. But sometimes, nature plays a cruel game with them. The sand that gathers together causes traffic jams more often. The residents don't have a moment of peace. You have to fight it. But even if your neighbors help you, the sand will eat up your house anyway. You won't have enough soil to make your house wall break off the sand. And because you will lose to it, you will remove the windows and doors of your house and let the sand in. At least, it will keep your house from collapsing. And when the time comes, the sand will disperse from this village again. The sand will stick to the palm leaves like this. The sand will form and expand until it can no longer move because of its size. In many cases, the sand clearly shows the nature of the movement. A new biological problem is being investigated. The Al Fawar Volcano is part of a project designed to stop the expansion of the desert. The hot water from the soil is poured onto the ground. But the height of the pouring water makes it cooler. Getting closer to the sand is a hope. The green area will remove the heat and dryness which will stop the sand and keep the water in the sand. Fifty years ago, Ralph Barno asked him why the sand is expanding and what is the secret in the sand. You have to go out and meet it and study it. That is the truth from observation. And that is what he believed until he was 90 years old. The sand is covered with moisture. Whether it comes from the river or the ocean or the wind. The sand can be seen in various places. The expansion of the atmosphere and the movement of the sand can be felt by some people. The movement of the sand can tell us about the exciting past of our planet. A past that has been changed drastically. The Earth, which has been the sand of the world for a long time, is an endless process of disintegration. And this constant change is the proof of every process. You don't have to really understand the sand. The Brazilian writer Paulo Coelho wrote that it is not enough to study only a single grain of sand. Within it, you will discover all the wonders of creation.