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The necessary condition for human survival is an environment with oxygen. The ocean is the first oxygen-free environment that humans entered using protective equipment, and this set of equipment is diving suits and breathing apparatus. Diving suits and related breathing apparatus allow us to carry out activities in the ocean like on land. What kind of evolution process have these devices that help us enter the ocean experienced? Next, you will see that the early diving suits look very similar to space suits, but the history of the invention of diving suits is longer than that of space suits. You who have been diving for so long, do you know the development history of diving equipment?

1.
According to written records, the earliest record related to diving appeared in about 500 BC. At that time, Roman and Greek soldiers would use a plant stem as a straw to breathe when crossing the river. This was probably the diving that could be achieved in ancient times.

In ancient times, there was also a need to enter deeper waters, and this purpose was mainly to salvage things that sank to the bottom of the water. At the end of the 17th century, a more mainstream diving equipment used for deep diving at that time appeared-the diving bell.

As shown in the picture, this bell-shaped diving equipment was invented by British astronomer Edmondo Halley (the famous discoverer of Halley's Comet) in 1691. His design is as follows: a conical empty wooden barrel is wrapped with lead on the outside, which can sink vertically. The diving bell is equipped with a glass window, and the air is replenished by a lead-hooped wooden barrel hanging below the diving bell. Because the pressure in the air storage barrel is high, air can be input into the diving bell. Then, the diver wears a smaller "diving bell" on his head, and there is a tube connected to the large diving bell to breathe. Halley said that he and his colleagues stayed in the bell at a depth of 18 meters in the sea water for 1.5 hours. Strictly speaking, this is the first recorded diving equipment in the world.

As shown in the picture, this bell-shaped diving equipment was invented by British astronomer Edmondo Halley (the famous discoverer of Halley's Comet) in 1691. His design is as follows: a lead-wrapped cone-shaped empty wooden barrel can sink vertically, and a glass window is installed on the diving bell. The air is replenished by a lead-wrapped wooden barrel hanging below the diving bell. Because the pressure in the air storage barrel is high, air can be input into the diving bell. Then, the diver wears a smaller "diving bell" on his head, and a tube connects the large diving bell to breathe. Halley said that he and his colleagues stayed in the bell at a depth of 18 meters for 1.5 hours. Strictly speaking, this is the first recorded diving equipment in the world.

2.
In August 1819, the first full set of diving equipment was manufactured by German Siebe, consisting of a "diving helmet", "diving suit" and "diving shoes". Subsequently, there are more and more subdivided products of diving equipment.

The 20th century was a period of vigorous development of diving equipment. This development stage benefited from the accumulation of more than 200 years of diving technology and the application of diving in the military. During World War I and World War II, military needs greatly promoted the development of diving technology, and divers dived to a depth of 100 meters for the first time.

In the early 20th century, although diving equipment still looked very retro, its performance was already very reliable and was not inferior to today's diving equipment. It was also during this period that fins, flippers, masks, dry suits, and diving computers were invented and applied to diving. So far, the system of modern diving equipment has been initially formed.

3.
After the war years, the quality of life of Western people has generally improved. They gradually realized that diving is a very aesthetic sport, and humans also yearn for this deep sea that covers 70% of the earth's area. Therefore, recreational diving has been developed in the long run, and many diving organizations have emerged one after another and started systematic teaching. Diving technology has also gradually improved, and diving equipment manufacturers have also appeared in large numbers. At this time, the functions of diving equipment are more complete. They are not only small and light, but also quite fashionable in appearance.

Today's technology is still developing rapidly, and diving sports are gradually entering a period of popularization, and diving equipment is also constantly upgrading and iterating. The evolution of diving equipment and the emergence of new diving equipment will be the norm. As for what the future diving equipment will become, let us wait and see.