How many meters can humans dive with the most advanced submersible available?

On March 24th, 1997 plunged into the water from Yokosuga, a 4439-ton mother ship, in the waters near Guam in the Pacific Ocean, and successfully dived to the bottom of the Mariana Trench with a depth of109110000m, which is the highest diving record in the world for unmanned detectors.

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1554, the Italian Tar Chilia invented and manufactured the wooden spherical submersible, which had a great influence on the development of the submersible later. The first submersible with practical value was designed by Harley in England in 17 17. In the past, most people used submersibles to search for sunken treasures. These submersibles have no power, and they must keep in touch with the mother ship on the water through pipes and ropes. Since 1950s, various self-propelled submersibles have appeared for scientific investigation. 1948, piccard made the "Fern III" submersible, which dived to 1370 meters. Although the manned cabin is seriously flooded, it has opened a new era of human deep diving. 195 1 year, Picard and his son built the famous submersible Trieste. The submersible is 15. 1m long and 3.5m wide, and can carry three people. 1953 successfully dived to 3150m in the Mediterranean in September. 1955 "Trieste" was bought to America, and Picard and his son built a new submersible for America. The new Trieste was built at 1958. The first dive reached 5600 meters, and the next year it reached 73 15 meters. 1960, the United States used a newly developed submersible to dive into the Mariana Trench, the deepest part of the world's oceans, for the first time, with a diving depth of10916m. 1953, the first unmanned submersible came out. 1980, the French "killer whale" unmanned submersible dived 6000 meters. The Japanese "Trench" unmanned submersible probe (maximum diving depth1.10000m) was launched from the 4,439-ton mother ship "Yokosuga" in the waters near Guam in the Pacific Ocean on March 24th, 165438. Submersible vehicles can complete all kinds of scientific research and rescue, repair, search, exploration, photography and other work. For example, "Alvin" once found the hydrogen bomb that crashed into the Mediterranean Sea and the sunken ship "Titanic".

Deep-sea submersible embodies a country's comprehensive technical strength and is the frontier and commanding height of marine technology development. At present, only the United States, Japan, France and Russia have deep-sea manned submersibles with a maximum working depth of no more than 6,500 meters.

The 7000m manned submersible developed by China will become the deepest manned submersible in the world, accounting for 99.8% of the world seabed.