Antarctica and the North Pole: The most incredible places on earth. What magical discoveries have humans made here?

Did you know? Antarctica is a continent, while the Arctic is an ocean. 97% of the land in Antarctica is covered by ice and snow, while two-thirds of the Arctic is ocean. The average annual temperature in Antarctica is about minus 50 degrees, and the average temperature in the Arctic is about At minus 18 degrees, people can’t help but wonder why there is such a big difference between the North and South Pole? One is the difference in altitude between the two. Most of the Arctic is ocean, with an average altitude of only 10-20 meters. Only the average altitude of Antarctica is more than 2,000 meters. Secondly, there are ocean currents. You must know that the edge of the Arctic is connected with the Pacific and Atlantic Oceans. They are connected together, so the warm current coming from the equator can flow into the Arctic Ocean. Since the continent around Antarctica has an Antarctic gyre, the rivers flowing around the Antarctic will be extremely cold, causing the warm current to be isolated, making Antarctica cold all year round.

The lowest temperature in Antarctica currently observed by humans has reached minus 93.2 degrees. You may be curious about what the two most incredible places on the earth have in common, that is, the Antarctic and the North Pole. ? First of all, we need to know that both the Antarctic and the North Pole have polar day and polar night. These phenomena are caused by the tilt of the earth's rotation axis. Because of the different latitudes, there is a significant difference in their lengths. Many people know that the Antarctic and the North Pole have polar days and nights. There are auroras in the North Pole. It can be said that the aurora in the two regions occur at the same time, because the aurora is caused by ions in the solar wind being attracted to the poles by the geomagnetism.

Perhaps you will point out that the Antarctic and the North Pole are extremely far away from humans. In fact, they also appear to be relatively far away from human life. However, some things that happen in the Arctic and Antarctic regions are really related to people's lives. This It is also the butterfly effect that we have heard and seen, so scientists will pay close attention to certain things that happen in the Arctic and Antarctic regions. After all, this is inseparable from the development of human beings in the future. Therefore, human beings pay close attention to these "remote areas". Investigations are also particularly important. So what magical discoveries have humans made in the Antarctic and Arctic?

A group of scientists once came to Antarctica for fieldwork and discovered that there was a 2-kilometer-long ice crater in the eastern part of Antarctica. The scientists conducted in-depth research near this ice crater. After a long period of research, After discussion, they pointed out the reason for the formation of the ice crater. They believed that it was closely related to human life. The reason why it exists is because of the trend of global climate warming that humans are now facing. It also makes people feel incredible. In fact, The appearance of such an ice crater on the Earth's South Pole means that the coldest areas on the Earth are no longer as solid as human imagination, and they will even become more and more fragile. You must know that what scientists discovered this time should not have been The emergence of ice craters is precisely because the earth's climate has become increasingly warmer, which has attracted people's attention to the Antarctic ice crater event, because changes in the ecological environment have also been accompanied by quiet changes in the natural environment. The occurrence of many strange natural phenomena not only heralds huge changes in the environment, but also heralds the dangers and crises that humans will face.

Just like this incredibly strange phenomenon discovered by the British in Antarctica, it has also aroused people's vigilance and attention. It is worth mentioning that the British media's photography team was filming in Antarctica. The following mysterious phenomenon was accidentally photographed on the Antarctic seabed. The image shows slender icicles swimming in the seabed. The seawater where the icicles go is quickly frozen. The frozen seawater around them can not only form The death net will also expand rapidly, which means that the sea urchins and starfish within this range will not only fail to survive, but will all die immediately. Before seeing this scene, many people will think that this phenomenon only appears in science fiction novels. , However, such a scene is actually staged in front of humans. This special natural phenomenon is called death icicles by humans. It was only found in Antarctic waters during this period. The reason for its formation is that the temperatures in the Arctic and Antarctic are too low. It causes the salt in the seawater to precipitate, so when the seawater freezes quickly, it will also freeze the surrounding organisms.

It is worth mentioning that the freezing phenomenon in the seabed will also cause the seawater to extend to the seabed in the form of icicles. This process can last 5 to 6 hours, and a professor from Colorado State University in the United States Sonia Credenweiss points out in a new study published in the Proceedings of the National Academy of Sciences that there is "the cleanest air in the world" in a certain area in the South Pacific surrounding Antarctica because it contains aerosols The component detection found that this is an area of ??the atmosphere that has not been affected by human activities. How were they formed?

Sonia Credenweis and her team have always believed that the air near Antarctica should be relatively clean air on the earth. After all, it has the lowest impact from humans, so there is The cleanest air is likely to exist. Unfortunately, with the continuous expansion of human activities and the increasing demand for fossil energy, it is now difficult to find areas of air on the earth that are not affected by human activities. Fortunately, through the efforts of Sonia Credenweis and her team, they finally found the cleanest air area in the South Pacific near Antarctica.

Due to the ever-changing natural environment on the earth, because there are the coldest places and the hottest areas, few animals can survive in such extreme climate conditions, such as the hottest desert areas. Its surface temperature can reach 50 degrees Celsius, and even humans will feel helpless. In the Antarctic and Arctic regions, the lowest temperature can reach more than minus 60 degrees Celsius. Obviously, it is difficult for humans to survive in this extreme environment. What is surprising is that on the earth The two most extreme places are the Arctic and Antarctic. Logically speaking, it snows all year round in these two places, and the temperature can be as low as minus 60 degrees Celsius. Basically, no animals or humans can survive here.

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It is understood that there are still a few people living in the Arctic, and there are also animals such as polar bears. Only Antarctica is basically uninhabited, although there are also penguins, seals and other animals living here. , at this point you may be questioning why the Arctic is inhabited but the Antarctic is uninhabited? In fact, some scientists have discovered that primitive humans lived in Antarctica as early as 40,000 years ago. They endured the extremely cold weather and struggled to survive. From then on, it can be said that except for a few scientists here, no other humans lived in Antarctica. Some scientists pointed out , the Arctic is more suitable for human habitation than the Antarctic, because it is relatively close to the inland, and human migration and transportation are also more convenient. In addition, the temperature of the Antarctic is lower than that of the Arctic, so the Arctic is more suitable for human habitation. In this regard , what do your friends think? Welcome to leave a message below in the comment area. Thank you for watching this video. See you in the next one.