Alon Bodner, entrepreneur and engineer, was asked by his young son if people can breathe underwater like fish. The question motivated research, which led to the development of an underwater breathing system, which uses air dissolved in water for underwater breathing needs in submarines, underwater living or personal diving.
By: Yael Halfman Cohen
Alon Bodner, entrepreneur and engineer, was asked by his young son if people can breathe underwater like fish.
The question motivated research, which led to the development of an underwater breathing system, which uses air dissolved in water for underwater breathing needs in submarines, underwater living or personal diving.
"The fish know how to do it, so why not us? ” assumed Bodner at the beginning of the development process, about a decade ago. Bodner learned that attempts to fully imitate the biological gill system of fish were unsuccessful, and proposed another direction: utilizing the air dissolved in water for breathing. The fish also use the air dissolved in the water, but since our lungs need oxygen in a gas accumulation state, in addition to separating it from the water, it is also necessary to turn the dissolved air from a liquid accumulation state into a gas.
There are more than 10 trillion fish in the sea, and they all need oxygen to breathe. Naturally, there is oxygen dissolved in water, which enters the oceans from the atmosphere in the process of diffusion, and then spreads to the depth as a result of pressure equalization processes. The amount of dissolved air found in water at a temperature of 20° is about 1.5% of the volume of water (in a gas state), and the colder the water, the more dissolved air it contains. Oxygen makes up about 34% of the air in the water (compared to about 21% in the atmosphere). In addition, the amount of air (and oxygen) dissolved in water hardly changes, at least up to a depth of 200 meters. Hence, there is a huge amount of oxygen dissolved in water, and it can be separated from them and used for underwater breathing.
The separation of air from water is based on 'Henry's Law', according to which the amount of gas that can be dissolved in a liquid is directly proportional to the pressure on the surface of the liquid (at a higher pressure, more gas can be dissolved, and vice versa). Hence, if we take a liquid with dissolved gases at some pressure in a saturated state and reduce the pressure, a state of oversaturation will be created, and some of the gases will come out of the solution. A familiar phenomenon when opening a bottle of carbonated drink. This natural process was used to separate the gas from the water in the developed system.
So far, two prototypes have been built and patents have been registered in the USA and Europe. An Italian group developing a submarine plans to use a like-a-fish system to supply air to the crew. An organization called: Human Underwater Society is currently developing an underwater laboratory near the island of Tahiti, and there is also the intention to use this system.
This is an example of development inspired by the underwater breathing capabilities of fish. Although the application itself is not based on an exact imitation of the operation of the biological system, the motivation for the research came from the desire to imitate this ability, while the application is based on a natural law, in this case, a chemical law.
Learn more: www.likeafish.biz
11 תגובות
The idea first appeared in the 1989 film The Abyss, perhaps as science fiction at the time, but even then they were talking about a high-pressure system, so there may have been something scientific behind it...
The preoccupation with the question of whether a Jew is involved in this is embarrassing and not suitable for serious people
Israel Shapira
Yes
Haim, do you know the joke about Yosef Borg, Abram's father, and the Egyptian mummy?
I understand that the system is too big for one person. I'm also interested in whether she produces oxygen at a rate that matches the rate of breathing.
Regarding the Jewish genius - I estimate that there are other attempts in the world to develop such a facility, certainly in the USA, but the entrepreneur's idea is beautiful.
To Abraham Borg
There was always a big mouth…
Miracles
About a number of fools in our districts I will tell you a short and true satisfaction. When Avraham Borg was Speaker of the Knesset he visited a man who owned a farm of donkeys. The same man proudly told Borg that he had 30 donkeys on his farm. In his answer, Borg told him that he had 90 more severe and that's what he kidnapped. He wasn't far wrong.
may be…
Let's be precise - there are also very smart Jews. And "maybe" we have some big fools...
The difference is clear:
The topic of breathing in water is seen only by a peppered Jewish mind...
May be
What's weird about that? If the article was about a Japanese researcher who invented the blue LED, then you would say "weird that only a Shinto mind thought of this"?
Strange that only the Jewish mind thought of it...