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
Latest By
Category:
Armor
Artificial
Intelligence
Biology
Clothing
Communication
Computers
Culture
Data Storage
Displays
Engineering
Entertainment
Food
Input Devices
Lifestyle
Living Space
Manufacturing
Material
Media
Medical
Miscellaneous
Robotics
Security
Space Tech
Spacecraft
Surveillance
Transportation
Travel
Vehicle
Virtual
Person
Warfare
Weapon
Work
"I think engineering will supply our demand for a "spiritual" life after meat death."
- Bart Kosko
 |
| Sentry Trees | ||
| A set of trees that will allow only those with the safe signal to pass. |
At this point in the story, Aile Farr, biologist from Earth, is about to get his first real look at Iszc technology with his host, Zhde Patasz.
| The glide-car slowed, coasted toward the beach, and halted twenty feet offshore. Uder Che, the architect, jumped into the knee-deep water and cautiously walked ashore, carrying a black box. The trees reacted to his presence, at first leaning toward him, then recoiling and unlacing their branches. After a moment there was a gap wide enough for the glide-car, which now proceeded across the beach and through the gap. Uder Che followed and boarded the car; the trees once more joined branches to create an impenetrable tangle.
Zhde Patasz explained that, "The trees will kill anyone who attempts to pass without manifesting the proper safe-signal, which is radiated from the box. In the past, planters often mounted expeditions against each other - no longer the case, of course - and the sentry trees are perhaps not strictly necessary. But we are a conservative lot and maintain our old customs. |
| Technovelgy from The Houses of Iszm,
by Jack Vance. Published by Better Publications in 1954 Additional resources -
|
Trees or bushes with interlaced branches have been used for centuries as a kind of barrier; at least one ninth century French king complained of the construction of unauthorized haies et fertés - hedgerows made of interlaced hawthorne branches.
Here's another brief excerpt of sentry trees in action:
“I wasn’t molesting anything or anyone.”
The Szecr shrugged. “The tree thought otherwise. It is trained to be suspicious of strangers. Among the lower castes…” the Szecr spat contemptuously, “feuds and quarrels go on, and the trees become uneasy at the presence of a stranger.”
Farr turned to examine the tree with new interest. “Do you mean that the trees have a conscious mind?”
The Szecr’s answer was no more than an indifferent shrug.
Farr walked up to one of the houses, peered into a low-hanging pod. Instantly a branch dropped down, and had Farr not jumped back he might have been injured. As it was, the heavy terminal frond slapped across his scalp. One of the Szecr, standing twenty yards distant, sauntered forward. “You are not advised to molest the trees.”
Comment/Join this discussion ( 0 ) | RSS/XML | Blog This |
Additional
resources:
More Ideas
and Technology from The Houses of Iszm
More Ideas
and Technology by Jack Vance
Tech news articles related to The Houses of Iszm
Tech news articles related to works by Jack Vance
| Living Human Neuron Biological Compute Rack |
| Biological War: A Scenario |
| What'll You Have? Extinct Animals Returned, Or Synthetic Eggshells? |
| Black Fungus Blocks Radiation |
Want to Contribute an
Item?
It's easy:
Get the name of the item, a
quote, the book's name and the author's name, and Add
it here.
| <Previous | Next> |
|
|
|
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 Science Fiction 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
'Within seconds the material was spread out over fifty yards, in a matter of hours it might occupy several cubic miles of space...'
'And the lifter was being piloted by a large pizza with extra cheese...'
'Young people found the driverless car admirable for petting.'
'After twenty generations of shillyshallying...'
'Our planes are going to start bringing in bales of discarded plastics...'
'... completely forgetting the ship at sight of the awesome figure and great head of the giant Gaut...'
