What's the difference between USO and UFO?

Even if ordinary people have never seen UFOs and are familiar with UFOs or UFOs, they are quite unfamiliar with another mysterious object USO. USO is the abbreviation of "unidentified diving object", referred to as USO. It is not as famous as UFO, but it was discovered before UFO. 1902, a sailor on a British cargo ship sailing in Guinea on the west coast of Africa saw Uso for the first time. Since then, USO reports have come from time to time. It is said that 1973 even disrupted NATO's exercise in Korsner Bay, Norway. USO is characterized by its rapid action and sinking depth far exceeding that of various known submarines, which can make radio, radar, sonar and other electronic equipment fail. Regarding the essence of USO, some people think that it is a vehicle for aliens, and even think that there is an alien base somewhere in the depths of the ocean. Others think that USO is an illusion caused by atmospheric refraction, just like a mirage. Unidentified flying objects often appear in the vast ocean of the earth, and among these unidentified flying objects, the United States, the former Soviet Union and other superpowers have spent a lot of financial and military resources to track and search them for a long time, which has been in vain. The more reliable thing happened in 1990, when dozens of NATO warships were conducting military exercises in the North Atlantic. Suddenly found the current USO, so rounded up and attacked collectively. When the ghost submarine surfaced unscathed, all radar, sonar and other communication systems on the warship strangely failed, and these systems did not return to normal until it left. [Edit this paragraph] Uso and the legendary underwater man It is said that on the Jumingda beach in Estonia, a group of fishermen found a strange human who had never seen before: his mouth was as flat as a duck's mouth, but his chest was like a toad, and later people called him "toad". When Toad saw a large crowd chasing him, he ran quickly and jumped into the Baltic Sea. According to the fishermen who were present at the time, he ran so fast that people chasing after him couldn't see his feet clearly. Later, he found his footprints on the beach, like giant clam claws. 1968, Mooney, an underwater photographer in Miami, USA, said that he had seen a freak at the bottom of the sea: his face looked like a monkey and seemed to have gills, but his eyes looked like people without long eyelashes, bigger than people's eyes; The two forelimbs are also like monkeys, but they are covered with bright scales and the soles of their feet are like duck webbed feet. He said that the monster was staring at him all the time, which scared him, but the monster didn't attack him at last, but suddenly turned around and turned on the propeller at his feet and swam away quickly. Mooney said: "I clearly saw that it had five claws on its sole, but I didn't have time to take pictures of it." What a pity! " By the end of 1980s, it was rumored that there were monsters in the swamp of Beaver, South Carolina, USA. Witnesses said that this half-man, half-beast "lizard man" was nearly two meters tall, with big eyes, covered with thick green scales and only three fingers in each hand. It walks upright and is powerful enough to easily overturn a car. It can walk in the Shui Ze like a fly, so people can't catch it. Many people speculate that this monster may be an underwater man who climbed ashore. Whether the legendary monster really belongs to another kind of human beings and whether it comes from the bottom of the sea, that's for the time being. Surprisingly, it is said that there are often some unknown diving boats in the sea. They are so elusive and advanced that they are unbelievable. The earliest discovery of unidentified diving objects was in 1902. The report said that the British freighter Volt? 6? 1 Sailing in the Gulf of Guinea on the west coast of Africa, the crew found a huge monster that was semi-submersible and semi-buoyant. Under the illumination of searchlights, the crew clearly saw that this behemoth was made of slightly round metal, with a central part about 30 meters wide and 200 meters long, and its appearance was very similar to that of today's space shuttle. It dived into the water quietly under the light. In the late 1950s, it was also said that "ghost submarines" appeared off the coast of Argentina and the United States. It is said that a huge cigar-shaped metal object was found sailing underwater in the Newport Strait of Argentina. Two weeks later, the Argentine navy detected the unknown diving object of the ghost ship and attacked it with a torpedo, but the result of the attack was unknown. The unknown submarine disappeared after the bay was blocked. It is also reported that 1963, when the US Navy conducted a military exercise in the southeast waters of Puerto Rico, it discovered an unknown submarine. It has only one propeller, but it can sail at a speed of 280 km/h at a depth of 9 km. American warships and submarines tried their best to catch up with it, but they couldn't. The performance of this ghost submarine is staggering, because even the most advanced submersible can only dive to about 6 kilometers underwater, and the speed in the water will not exceed 95 kilometers per hour. The traces of unknown diving objects spread all over the world, which attracted the attention of researchers. Some people even think that unidentified diving objects are underwater people's ships. What is even more sensational is that many people say that various mysterious buildings have been found in the sea. 1969, two American writers Robert? 6? 1 filo and Michelle? 6? 1 In order to experience life, Grameen went to Bimili, a participating country in the Bahamas, to explore the seabed. They found a geometric figure made of stone heads at the bottom of the sea near the north shore of Bimili Island. These stones are arranged in a rectangle with a total length of about 250 meters. In July of the same year, another archaeologist, Trona, and divers found a group of large stone pillars in the sea west of the island. Some of these stone pillars lie on the bottom of the sea, while others stand upright in the water. Later, it was speculated that these urban sites were built between 1 10,000 years ago and1.20,000 years ago, indicating that there were once advanced cities here. This discovery caused a sensation all over the world, and also prompted many people to start looking for the legendary underwater city. Then several rumors about the discovery of submerged structure came out. It is reported that in 1985, Dr. Rothan of the National Oceanographic Society of the United States drove a small submersible and carried an underwater camera to investigate the Atlantic seabed. When he dived to a depth of about 4000 meters, an amazing and wonderful scene appeared in front of him: an underwater manor and a brilliant Spanish crystal castle. Even roads are paved with marble-like crystal blocks. At the top of the circular building, an antenna similar to a radar is installed, but no one can be seen in the city. Dr. Lotan quickly took pictures with an underwater camera, but suddenly an unknown underwater turbulence came and pushed him and the submersible away from this beautiful underwater city. Since then, Dr. Lotan has never found this underwater "Crystal Palace". What's more, the shot he captured was very vague, and he could only vaguely see the shadow of the underwater castle. 1992 in the summer, it is said that a group of Spanish kelp pickers saw a huge transparent dome building in the sea only a few tens of meters deep. 1In July, 1993, some British and American scholars claimed to have discovered two giant "pyramids" at the bottom of Bermuda Island in the Atlantic Ocean about 1000 meters. According to their introduction, the discovered pyramid is made of crystal glass, with a width of about 100 meters and a height of about 200 meters. However, when people heard the news and returned to these places again, these legendary undersea buildings had disappeared without a trace.