There is a magical geyser in Tagda in the upper reaches of the Yarlung Zangbo River. The fountain of geyser is trickling. After a series of short pauses and eruptions, accompanied by a thrilling noise, high-temperature steam suddenly rushed out of the spring and immediately expanded into a water column with a diameter of more than 2 meters and a height of about 20 meters. The steam mass at the top of the column continued to roll and jumped into the blue sky. Its eruption cycle stops automatically after several minutes and tens of minutes, and then erupts again at intervals. Geysers are named after stopping spraying.
In addition to the geysers in China, there is a world-famous geyser near Reykjavik, Iceland. This spring is a circular pool with a diameter of 20 meters. It is filled with hot water at regular intervals, and the hot water slowly flows out. Soon, the clear water in Tankou rolled wildly, making a snoring sound similar to that when the pot was boiling. Then a water column rose into the sky, and there was boiling drizzle in the blue sky. The highest water column can reach 70 meters! Have you ever seen the acrobatic artist Brown Pavilion set up a steel rope with a length of 1 0,000 feet above the rapids of Niagara Falls, and successfully walked there empty-handed? Have you ever seen him walk through this 1000-foot-long steel cable blindfolded and covering his head? Have you ever seen the same person standing on a unicycle, walking on stilts, carrying people, sitting on a wire rope and making an omelet to eat? What makes the brave and great Brown Pavilion so powerful? That is Niagara Falls, which gives Browning great and magical power.
Niagara Falls on the US-Canada border
Niagara Falls is one of the most magical places in the world. Let's visit the legendary and mysterious Niagara Falls. Niagara river is part of the border between Canada and the United States, separating new york from Ontario, Canada, and flowing northward from Lake Erie into Lake Ontario, with a total length of nearly 30 miles. It is located in the north and covers an area of 250,000 square miles, making it a smooth outlet for these lakes. Its maximum current reaches 250,000 cubic feet per second, which is very awesome. The river is divided into three sections by Strawberry Island and Grand Island, and there is only one channel for the first five miles. The length of the eastward American river is 15 miles to 16 miles; The Canadian River in the west is short, only two to three miles long. After passing through the big island, the two rivers meet again and then flow for 3 miles to reach the world-famous Niagara Falls.
The river can finally reach Lake Ontario, passing through seven miles of canyons, an open lake plain and seven to eight miles of land. Niagara Falls itself is also divided into two parts by Gothic Island. The horseshoe waterfall is close to 160 feet high and the top is nearly 3300 feet wide. The waterfall, which is about 10 feet higher than the Canadian part, but only 990 feet wide, is located on the American side.
Its formation lies in the unusual geological structure. In Niagara Canyon, the rock formation is almost horizontal, dropping only 19 feet to 22 feet per mile. The top of the rock is hard marble, and the bottom is soft geological layer which is easy to be eroded by water. The reason why the torrent can rush down from the cliff edge at the top of the waterfall is precisely because there is a hard marble geological layer on the soft stratum. During the Pleistocene, the huge continental glaciers retreated, the marble layer was exposed, and was submerged by the flood from Lake Erie, forming the Niagara Falls today. By calculating the speed of glacier retreat, this waterfall was formed at least 7000 years ago, and it may have been formed as early as 25000 years ago.
The formidable "Hell Gate" of Kunlun Mountain
"The sky is grey, the wild is vast, the wind blows the grass and the cattle and sheep are low." In the eyes of herders, the place with plenty of grass and water is their paradise for grazing. However, shepherds living in Kunlun Mountain would rather starve their cattle and sheep to death on the Gobi Desert because there is no fat grass to eat than dare to enter the ancient and silent valley of Kunlun Mountain.
This valley is the valley of death, known as the "gate of hell" of Kunlun Mountain. The valley is covered with wolves' fur, bears' bones, hunters' steel guns and lonely graves, rendering a gloomy and horrible smell of death to the world. The following is a true story witnessed by a geological team of Xinjiang Bureau of Geology and Mineral Resources:
1983, a group of horses in Alar Ranch, Qinghai, strayed into Death Valley because they were greedy for the fat grass in the valley. A shepherd ventured into the valley in search of horses. A few days later, no one appeared, but the horse appeared. His body was later found on a mountain. Clothes tattered, barefoot, eyes bulging, mouth wide open, shotgun in hand, a pair of die unsatisfied. Curiously, he didn't find any scars or signs of being attacked.
Shortly after this tragic accident, the geological team working nearby was also attacked by Death Valley. It was July, 1983. It was very hot outside, but a snowstorm suddenly started near Death Valley. A thunder accompanied by a sudden snowstorm made the chef faint on the spot. According to the chef's memory, as soon as he heard the thunder, he suddenly felt numb, blacked out at the moment, and then lost consciousness. When the team members went out to work the next day, they were surprised to find that the original loess had turned into black soil. Like ashes, all animals and plants were "killed".
The geological team quickly organized to investigate the valley. After investigation, it is found that the magnetic anomalies in this area are extremely obvious and widely distributed. The deeper the valley, the higher the magnetic anomaly value. Under the action of electromagnetic effect, the charge in the cloud and the magnetic field in the valley lead to charge discharge, which makes this place a minefield. Lightning often targets running animals. This guess is the best explanation for several consecutive events.
American "Yellow Avenue" with planetary orbit data
In Teotihuacan, a famous American city, there is a broad avenue running through the north and south, which is called "Yellow Avenue". In the 10 century, when the Aztecs who first came here came to this ancient city along this avenue, they found that the city was empty. They thought the buildings on both sides of the avenue were the tombs of the gods, so they gave it this strange name.
1974, a man named Hugh Hariston claimed at the International American Congress held in Mexico that he had found a measuring device suitable for all its streets and buildings in Teotihuacan. Through computer calculation, the unit length is 1.059 m. For example, the heights of Feather Snake Temple, Moon Pyramid and pyramid of the sun in Teotihuacan are 265, 438+0, 42 and 63 "units" respectively, with a ratio of 65 and 438+0: 2: 3.
When Hariston surveyed the ruins of temples and pyramids on both sides of the Yellow Avenue, he found a surprising situation: the distance between those ruins on the Yellow Avenue just represents the orbital data of planets of the solar system. In the ruins of the temple around the castle, the distance between the earth and the sun is 96 units, Venus is 72, Mercury is 36 and Mars is 144. There is a canal behind the castle, which is 288 units away from the central axis of the castle, just the distance between Jupiter and Mars. 520 units away from the central axis is the ruins of an unknown temple, which is equivalent to the distance from Jupiter to the sun. After 945 units, there is another temple site, which is the distance from the sun to Saturn. Take 1845 "unit" to the center of the moon pyramid, which is exactly the orbital data of Uranus. If we extend along the "Yellow Avenue" in a straight line, we will reach two locations on the Cerro Gordo Mountain. The distances are 2880 and 3780 "units" respectively, which is exactly the distance between the orbits of Pluto and Neptune.
The "Yellow Avenue" is obviously based on the model of the solar system. The designer of Teotihuacan must know the planetary motion of the whole solar system and the orbital data between the sun and the planets. However, humans discovered Uranus in 178 1 year, Neptune in 1845, and Pluto in 1930. So, in the prehistoric times when chaos began, which invisible hand pointed out all this to the people who built Teotihuacan?
Shennongjia in China
Shennongjia is located at the junction of Sichuan and Hubei between the Yangtze River and Hanshui River in China. Known as the "Roof of Central China", it covers an area of 3,250 square kilometers, with forest land accounting for more than 85%. Average elevation1700m, highest point 3105m. There are many climate types.
When it comes to Shennongjia, people can't help thinking of "savage". From ancient times to the present, a large number of records and legends about savages make it difficult to distinguish between true and false. From 1977 to 1980, the relevant departments organized two large-scale field tests and collected a lot of evidence about the existence of savages, such as their hair, footprints and feces. And also found the bamboo nest where the savage lived. The results of the investigation seem to show that there is indeed a strange animal unknown to people in Shennongjia.
Mysterious ghost island
Westerners love sailing, but there are many strange things in the history of sailing. 1707, British captain Julius discovered land on the horizon north of the Spitzer Bacon Islands, but this land was never accessible. But what is worthy of recognition is that this land is not an optical illusion, so he marked it on the chart. 200 years later, Admiral makarov and his crew who took the icebreaker "Ermak" to the North Pole once again found a piece of land, which Julius saw that year. Navigator wolseley also found the outline of the island when he passed through the area in 1925. However, when scientists went to investigate in 1928, they did not find any islands in this area.
On July 183 1 day, when an Italian ship was passing near Sicily, the captain suddenly found the sea water boiling on the sea surface of east longitude12 42'15 "and north latitude 371'30". The captain and his crew had never seen such a sight, and they were stunned. When the ship returned eight days later, it found a smoking island ahead.
There are many reddish-brown porous pumice and a lot of dead fish floating in the surrounding sea water, and an island was born in smoke and boiling water. Moreover, in the following 10 days, it continued to stretch and expand, and its circumference expanded to 4.8 kilometers, and its height also increased from the original 4 meters to more than 60 meters. As this small island was born in the Tunisian Strait with busy shipping and important geographical position, it immediately attracted the attention of various countries and a large number of scientists went to investigate. But something strange happened. Just as people were busy charting, surveying, naming and determining its civil and military value in many ways, the island suddenly began to shrink. By September 29, the island had shrunk by 87.5% after being born for more than a month; Two months later, there was no trace of the island on the sea, and the island had completely disappeared.
There are many similar strange things. Scientists call this secretive and flickering island "Ghost Island". They are different from the common floating islands on tropical rivers, which are formed by rising water or storms washing away some banks or swamps.
"Ghost Town" in China Desert
This is a deserted but lively "city". Wan Li is clear and breezy. When people walk in the castle, they can hear waves of beautiful music coming from afar, as if thousands of wind chimes are shaking with the wind, and as if thousands of strings are flicking. But with the whirlwind, flying sand and stones, the sky was dark, and the wonderful music suddenly turned into all kinds of strange cries: like the barking of donkeys, Ma Si, the roar of tigers ... I like the crying of babies around me and the sharp smile of women; Then it's like being in a busy city: selling, shouting and quarreling are endless; Then the wind blew suddenly, dark clouds covered the top, ghosts cried and wolves howled, and the castle was blurred everywhere ... The castle was shrouded in hazy darkness. This is the famous "ghost town" in Xinjiang. Who built it? Where did all those strange noises come from?
After on-the-spot investigation, scientists put forward a new viewpoint-"Wind Theory". In fact, a "ghost town" is a "windy city". There is no ghost making waves, but the raging wind in the middle is at work. All the phenomena of "ghost town" can be explained by "wind erosion landform" of earth science. Under the action of airflow, the wind blows up the sand on the ground and constantly impacts and rubs rocks, so rocks with different hardness are carved into various strange shapes under the action of wind.
Bermuda's mysterious triangle
The Bermuda Triangle lies in the western part of the North Atlantic. It is an archipelago consisting of 7 large islands, about 65,438+050 small islands and some reefs. It is still a mysterious sea area today with advanced technology, where advanced instruments will fail, and once people are in distress, there is no possibility of survival. Known as the "Devil's Triangle", it is a horrible and mysterious place.
The mysterious "snow-free dry valley" in Antarctica
Antarctica is the continent where humans have set foot the least, and there are many phenomena that people can't explain. "Dry valley without snow" is the most mysterious one.
The total area of Antarctic continent is140,000 square kilometers, and most of it is covered with ice and snow. Seen from high altitude, the Antarctic continent is a plateau with high middle and low sides, much like the shape of a pot cover. This ice layer, vividly called the ice sheet, has an average thickness of 2000 meters and the thickest part can reach 4800 meters. In winter, the ice sheet on the mainland blends with the sea ice in the surrounding oceans, forming a white ice sheet with a total area larger than that on the African continent, and its area will exceed 33 million square kilometers at this time.
China and Henan "Ice Ice Back"
Whenever the summer heat comes in September and winter, people who love fantasy will always yearn for a place that is warm in winter and cool in summer. Although the changes in spring, summer, autumn and winter are regular, the world is big and wonders. On this earth, some lucky people live in a "place" where it is warm in winter and cool in summer. This is what people call the "geothermal anomaly zone" in Huanren County, a mountainous area in eastern Liaoning. One end of this "geothermal anomaly zone" starts from Chuanyinggou, south of Manchu Town government residence 1.5km on the left bank of Hunjiang River, and the other end ends at Niuti Mountain in Kuandian County on the right bank of Hunjiang River. The whole geothermal anomaly zone is about 15km long and covers an area of106,000m2.
In summer, the underground temperature in the "geothermal anomaly zone" began to drop gradually. In the midsummer when the temperature is as high as 30℃, the temperature of one meter underground is actually-12℃, reaching the level of dripping into ice.
After autumn, the temperature here began to rise gradually. When winter comes, the north wind blows hard and the "geothermal anomaly zone" is steaming. People can see from the hill behind Renjiashan that although the land has been frozen, the cantaloupes planted here are still plump in Ye Zhuang, and the surrounding grass is still green. Ren Jia leveled a piece of land in this place and built a plastic shed with green onions and garlic. The garlic seedlings were cut twice, and the green onions grew green. It is found that the temperature in the shed can be kept at 65438 07℃ and the ground temperature can be kept at 65438 05℃. There is no snow on this mountain all winter and spring.
In the middle part of Taihang Mountain in the northwest of Shibanyan Township, Linxian County, Henan Province, there is also a place with this feature at an altitude of 1500 meters, which is called "Ice Back". Here, the ice began to freeze in March, and the ice age lasted for five months; Cold winter, but the heat wave is rolling, the spring water overflowing from the rocks is warm and pleasant, and the flowers and plants on both sides of the stream are bright and green.