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
 |
Let's Make Slaver Sunflowers! Engineering Plants To Reflect Light
In his 1965 novel World of Ptavvs, Larry Niven introduces the Slaver sunflower, a plant able to reflect light:
All the flowers in sight watched him. He was bathed in the glare. Louis knew they were trying to kill bun, and he looked up somewhat uneasily; but the cloud cover held.
"You were right," he said, speaking into the intercom. "They're Slaver sunflowers. If the cloud cover hadn't come up, we'd have been dead the instant we rose over the mountains..."
There was no alien survivor anywhere in the domain of the sunflowers. No smaller plant grew between the stalks. Nothing flew. Nothing burrowed beneath the ashy-looking soil. On the plants themselves there were no blights, fungus growths, disease spots. If disease struck one of their own, the sunflowers would destroy it.
Recently, efforts have been made to try to engineer plants so they reflect more sunlight back into space:
The plant stood a foot high on a knobbly green stalk. Its single blossom was as big as a large man's face. The back of that blossom was stringy, as if laced with veins or tendons; and the inner surface was a smooth concave mirror. From its center protruded a short stalk ending in a dark green bulb.
(Sunflower from 'World of Ptavvs')
(Strategies for engineering more reflective plants:
(i) Thin-film interference,
(ii) Reflection from photonic crystal structures,
(iii) Re-radiation via fluorescence)
Population growth and globally increasing standards of living have put a significant strain on the energy–food–water nexus. Limited water availability particularly affects agriculture, as it accounts for over 70% of global freshwater withdrawals (Aquastat).This study outlines the fundamental nature of plant water consumption and suggests a >50% reduction in renewable freshwater demand is possible by engineering more reflective crops. Furthermore, the decreased radiative forcing resulting from the greater reflectivity of crops would be equivalent to removing 10–50 ppm CO2 from the atmosphere.
Recent advances in engineering optical devices and a greater understanding of the mechanisms of biological reflectance suggest such a strategy may now be viable. Here we outline the challenges involved in such an effort and suggest three potential approaches that could enable its implementation.
Do we really want Slaver sunflowers?
Scroll down for more stories in the same category. (Story submitted 1/24/2024)
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 ( 0 )
Related News Stories - (" Biology ")
Biological War: A Scenario
'And now they wre busily transforming all their companions, and so on, and so on...' - Greg Bear, 1984.
What'll You Have? Extinct Animals Returned, Or Synthetic Eggshells?
'...a new plastic with the characteristics of an avian eggshell.' - Michael Crichton, 1990.
Black Fungus Blocks Radiation
'You were surrounded by Astrophage most of the time' - Andy Weir, 2021.
Lunar Biorepository Proposed For Cryo-Preservation Of Earth Species
'...there was no one alive who had ever seen them. But they existed in the Life Bank.' - John Varley, 1977.
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
You Will Eat The Cookies Made From Plastic...
'Our planes are going to start bringing in bales of discarded plastics...'
It's A Giant Robot! You Reporters Have Been Warned!
'... completely forgetting the ship at sight of the awesome figure and great head of the giant Gaut...'
Birds Learn To Sing Pictures ala Frank Herbert's Distrans
'We will fight in the time of fighting.'
ElectionSim: China's 'Ender's Game' Battle Sim, Or Lem's 'Kingdom In A Box'?
'So, Ender, we will now begin your education.'
Tactile Skin Supplier Map
'What strange sensitivity! What an amazing development of science was manifested in every move and act and word of this Robot!'
Flock Stymied By 'Adversarial Fashion'
'Forget the head atop it, the legs below, feet, arms, hands. It compels erasure.'
Orb Nomad Zero-Emission Electric Aircraft
'That explains how it was so easy for me to remain motionless in midair or to perch on a flagpole in imitation of a giant bird, even in the windy city of Chicago.'
ICE Buys Shock Gloves Like Batman's
What else is the Caped Crusader using?
Factories In The Sky Will Surpass Those Of Earth
'The thirty-odd miles of The Factory’s circumference...'
Sleeper Drones Lie in Wait
'Wandering mines, you took them out on the edge of the desert, set them down and activated them.'
Warfare Goes Underground In Ukraine
'Once in the very first weeks of the war, before everyone had been evacuated from the surface...'
Robot Bees 3D Printed By Festo
'At first I was struck by the large size of these bees..'
3D Printed Organs From Space
'For a while your colonists will have to come up to the [orbital] Hospital...'
DIY Robot Scorpion Crushes It
'...it raised its front end off the ground and waved its antennae at them, then raised one armoured claw as if to snip them out of the sky.'
How To Settle An Argument Between Two Robots
'Henry... assumed the curious absent look of a robot talking on the TBR circuits.'
The Wind Phone Calls Those Who Have Passed On
'Only I heard that!'
