Breathe Like A Fish Thanks To Alan Bodner

Alan Izhar-Bodner, an Israeli inventor, has developed a way for divers to breathe underwater without cumbersome oxygen tanks. His apparatus makes use of the air that is dissolved in water, just like fish do.


(From Breathe like a fish!)

The system uses the "Henry Law" which states that the amount of gas that can be dissolved in a liquid is proportional to the pressure on the liquid. Raise the pressure - more gas can be dissolved in the liquid. Decrease the pressure - gas dissolved in the liquid releases the gas. This is exactly what happens when you open a can of soda; carbon dioxide gas is dissolved in the liquid and is under pressure in the can. Open the can, releasing the pressure, and the gas fizzes out.

Bodner's system apparently uses a centrifuge to lower pressure in part of a small amount of seawater taken into the system; dissolved gas is extracted. The patent abstract reads:

A self-contained open-circuit breathing apparatus for use within a body of water naturally containing dissolved air. The apparatus is adapted to provide breathable air. The apparatus comprises an inlet means for extracting a quantity of water from the body of water. It further comprises a separator for separating the dissolved air from the quantity of water, thereby obtaining the breathable air. The apparatus further comprises a first outlet means for expelling the separated water back into the body of water, and a second outlet means for removing the breathable air and supplying it for breathing. The air is supplied so as to enable it to be expelled back into the body of water after it has been breathed.

Human beings have been thinking about how to breathe underwater since they started swimming. This long-held desire plays an important part in one of the first great science fiction novels, Jules Verne's 20,000 Leagues Under the Sea.

It consists of a reservoir of thick iron plates, in which I store the air under a pressure of fifty atmospheres. This reservoir is fixed on the back by means of braces, like a soldier's knapsack.
(Read more about Jules Verne's diving apparatus)


(Check out this Functional Captain Nemo Diving Suit)

More recently, I distinctly remember an episode of the sixties sf series Voyage to the Bottom of the Sea in which a scientist decides that the best way to breathe underwater is to give himself gills. Alas, once equipped with gills, and fully acclimated to life in the sea, Dr. Jenkins and his associate lie in wait outside the submarine Seaview, converting every diver who emerges from the ship into mermen.


(From The Amphibians - aired Mar-08-1965)

And, of course, everyone remembers the scene in which intrepid Jedi Obi-Wan Kenobi and Qui-Gon Jin don pencil-sized breathing masks to explore the swamp lakes of Naboo in The Phantom Menace. This trick is used again in the most recent Star Wars movie.


(Hmm, perhaps those small cylinders are centrifuges...)

Read more at Like a Fish: Revolutionary Underwater Breathing System. or take a look at more inventions from 20,000 Leagues Under the Sea. Also, an excellent recent novel, Starfish by Peter Watts, refers to a "recycler" that can be implanted directly in the diver. Thanks to alert reader Adi for pointing this story out.

Scroll down for more stories in the same category. (Story submitted 6/1/2005)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 11 )

Related News Stories - (" Engineering ")

3D Printed Spherical Flying Machine
'Gold dots against blue, basketball-sized, twelve feet up....' - Larry Niven, 1972.

Nanotech Used To Create Custom Water Filters In Tanzania
'People started out squeamish about Clearsacs...'- Paolo Bacigalupi, 2015.

Google Project Soli - Control Devices With A Gesture
'He waved his hand and the circuit switched...'- Philip K. Dick, 1955.

NASA's Subvocal Speech System
'She took a subvocal input device from its rack...'- David Brin, 1990.

 

Google
  Web TechNovelgy.com   

Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.

 

 

 

 

 

Current News

Storing 1 Zettabyte In 10 Grams
'It is theoretically possible to have a matrix in which each individual molecule has a meaning...'

Laser-Powered Spacecraft To Explore The Solar System
'Whoever launched it fired a laser cannon... for about forty-five years, so the intruder would have a beam to travel on...'

Skin Chair For That 'Sitting On A Fat Guy' Feeling
'The semi-sentient artifact glided to a position behind McKie...'

Pneumatic Micro-Tentacles Kidnapping Ants
'Long, flexible, glittering tentacles...'

Bee Narcs To Perform Drug 'Stings'
'Time for a replacement of both Behren and his dipterous insect...'

3D Printed Spherical Flying Machine
'Gold dots against blue, basketball-sized, twelve feet up....'

Airbus E-Fan All-Electric Plane Now Ready
I couldn't believe it, either.

Robot Swarms Improve Culture By Forgetting
'My mind was filled to the splitting point...'

Melomics Avant Garde Computer Musician
'Rollo sat at the keyboard, prim, inhuman, rigid, twin lenses focused somewhere off into the shadows...'

Samsung's Transparent Display Finally As Big As HG Wells'
Wells also figured out that 16x9 is the shape to have.

Nanotech Used To Create Custom Water Filters In Tanzania
'People started out squeamish about Clearsacs...'

This Robot Swordmaster: Yaskawa Bushido Project
'The instrument of prisms and target could not think, feel caution or remorse. And it carried a real blade.'

Thync Mood-Changing Wearable Device
'Very gently, hypnotically, the electronic pulses throbbed in the frontal lobes of his brain.'

What Science Fiction Inspires Russia's New Robot?
Russian science fiction fans had their own inspirations.

LightSail Solar Sail Deploys
'This was the first time any solar yacht had ever attained it...'

Living Concrete Repairs Itself
Science fiction fans were given this idea in 1951.

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.