Science Fiction
Dictionary
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
 |
Elektron Oxygen Generator Versus Martian Sawgrass
The International Space Station and the fictional Venus Equilateral Station (from a 1942 story by George O. Smith) have a problem in common - a failure of the "air plant."
(Elektron Oxygen Generator Diagram)
The ISS uses (among other components) the Elektron oxygen generation system. After several stoppages, the unit failed completely about a month ago. Astronauts are now using SFOG (solid-fuel oxygen generator) "candles" at a rate of one per person per day.
In his 1940's Venus Equilateral station series, author George O. Smith runs into this problem in the very first story. A bureacrat from Earth arrives to fill the post of station Director; shortly after his arrival, all of the inhabitants of the station suffer from oxygen deprivation. The problem? On an inspection, he looks into a room labeled 'air plant' and finds - a jungle of weeds! Naturally, he has them removed.
(Sawgrass)
Turns out the weeds are Martian sawgrass:
"What better purifying machine is there than a plot of grass?" shouted Channing. "... We breathe oxygen, exhale CO2. Plants inhale CO2 and exhale oxygen. An air plant means just that. It is a specialized type of Martian sawgrass that uses chlorophyll... We've spent years getting that plant so it will grow just right. It got so good that the CO2 detectors weren't even needed...
(Read more about Martian sawgrass)
It turns out that NASA worked on a related problem in the 1970's. They found that the air inside Sky Lab 3 was contaminated with more than 100 toxic substances. They put environmental engineer Bill Wolverton, PhD, to the task of ensuring cleaner air. After much research, he found that plants provided a solution. He found that common plants like Boston fern, dracaena, Ficus benjamina (rubber plant), and chrysanthemum eliminated up to 90% of such poisons as benzene, formaldehyde, and trichloroethylene from enclosed spaces. Dr. Wolverton noted that plants actually get better at the task of removing pollutants over time, saying "The longer a plant is exposed to certain chemicals, the more effective it becomes at removing them."
I've been paging through some of the Mars rover pictures looking for little clumps of sawgrass - no luck there. But maybe a solar-powered chlorophyll-based 'air plant' might be just what a space station needs.
Read more at NewScientist and NASAWatch. Thanks to reader Christopher Thomas for providing additional material for this article.
Scroll down for more stories in the same category. (Story submitted 6/21/2005)
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 ( 2 )
Related News Stories - (" Space Tech ")
SpaceX Wants A Moonbase Alpha
'And he had been sent with troops, supplies and bombs to command Russia's most trusted post, the Moonbase.' - L. Ron Hubbard, 1948.
NASA Wants Self-Driving Or Remote-Controlled Vehicles For Lunar Astronauts
'THE autobus turned silently down the wide street of Hydropole. Robot-guided, insulated from noise and cold...'
Orbital Mechanics, The Liftoff, The Turnover, The Retrograde Burn
'...the huge vessel had spun, with a sickening lurch, through a complete half-circle, the instant the power was reversed.' - EE 'Doc' Smith, 1928.
Can A Human Land A SpaceX Rocket On Its Tail?
'If she starts to roll sideways — blooey! The underjets only hold you up when they’re pointing down, you know.' - Stanley G. Weinbaum, 1936.
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.
Science Fiction
Timeline
1600-1899
1900-1939
1940's 1950's
1960's 1970's
1980's 1990's
2000's 2010's
Current News
SpaceX Wants A Moonbase Alpha
'And he had been sent with troops, supplies and bombs to command Russia's most trusted post, the Moonbase.'
Vast Apartment Living Will Get Even More Vast
'What is your population', I asked. 'About eighty millions.'
NASA Wants Self-Driving Or Remote-Controlled Vehicles For Lunar Astronauts
'THE autobus turned silently down the wide street of Hydropole. Robot-guided, insulated from noise and cold...'
Elon Musk Says Robotaxis Will Be Ready This August, 2024
'The car had no steering wheel, and no one drove!'
Moonwalkers AI-Controlled Electric Shoes
Now that's power walking that Hugo Gernsback would have approved.
Steve Jobs: 'Capture The Next Aristotle - With AI'
'It was disturbing to think of the Flatline as a construct...'
No Tips! Robotic Food Delivery In Phoenix
'...he rewired the delivery robot so that it would serve him midnight snacks.'
Electric Catamaran 'Explorer Eco 40m' Has 'Solar Skin'
'On went the electric-yacht faster and still faster.'
Orbital Mechanics, The Liftoff, The Turnover, The Retrograde Burn
'...the huge vessel had spun, with a sickening lurch, through a complete half-circle, the instant the power was reversed.'
Harvest Power From Tears And Blinking With Smart Contact Lens
'...he realized that it was not quite a clear lens. Speckles of colored brightness swirled and gathered in it.'
Europa Clipper Plate Carries A Special Message
'...a universal cryptogram — yet it is one which can be interpreted by any intelligent creature on any planet in the Solar System!'
Micro-Robots Are Smallest, Fully Functional
'With a whir, the Scarab shot from the concealing shadows of the corner where it had hidden itself.'
AI Enhances Images Your Brain Sees
'I could have sworn the psychomat showed pictures almost as sharp and detailed as reality itself'
Illustrating Classic Heinlein With AI
'Stasis, cold sleep, hibernation, hypothermia, reduced metabolism, call it what you will - the logistics-medicine research teams had found a way to stack people like cordwood and use them when needed.'
Deflector Plasma Screen For Drones ala Star Wars
'If the enemy persists in attacking or even intensifies their power, the density of the plasma in space will suddenly increase, causing it to reflect most of the incoming energy like a mirror.'
DIY Robotic Hand Made After Loss Of Fingers
'I made them... with the fine work of the watchmaker...'
