Earth Barcoded For Alien Convenience
This story is a bit different, so bear with me. It starts with the Hello World Project that Bernd Hopfengärtner was working on this past summer. He spent a considerable amount of time cutting a semacode into a wheat field just outside of Ilmenau in Germany.
(Hello World Project semacode)
A "semacode" is a special kind of a barcode, a two-dimensional barcode that is a computer-generated visual tag. It has been used for ubiquitous computing projects; semacode takes an URL (a web address) and converts it into a graphic that can be read with a suitably-equipped picture phone. You see the semacode pasted to a real world object, take a picture with your phone, the software decodes the semacode image and voila you go to the URL on your web-enabled phone. For example, you could put a semacode tag on a lamppost outside 1600 Pennsylvania Avenue that encoded "http://www.whitehouse.gov."
So now Bernd has tagged the Earth with a semacode that reads "Hello World." His semacode is 170 meters by 170 meters, and consists of an 18x18 grid of light and dark squares. He assumes that people will use Google Earth to read it.
(Hello World Project semacode close-up)
Apparently, he doesn't realize that, since this object can be seen from space, it "tags" the Earth for visiting aliens in the same way that streetcorners or other objects can be tagged for people.
It just so happens that the idea of somehow creating codes or symbols that are large enough to be read from space by aliens is an idea that is more than a century old. In his 1867 novel From the Earth to the Moon, Jules Verne wrote about a way to communicate with the inhabitants of the Moon:
I am bound to add that some practical geniuses have attempted to establish actual communication with her. Thus, a few days ago, a German geometrician proposed to send a scientific expedition to the steppes of Siberia. There, on those vast plains, they were to describe enormous geometric figures, drawn in characters of reflecting luminosity...
(Read more about Verne's way to communicate with aliens)
Update: Remember the famous images on the plain of Nazca?
Read more about Hello World and semacodes, via pasta&vinegar.
Scroll down for more stories in the same category. (Story submitted 12/7/2006)
Follow this kind of news @Technovelgy.
| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
you like to contribute a story tip?
Get the URL of the story, and the related sf author, and add
Comment/Join discussion ( 7 )
Related News Stories -
Soli Gesture Tech Will Be In Google Pixel 4
'I enjoy watching this way, but - He waved his hand and the circuit switched abruptly.' - Philip K Dick, 1955.
Lost Language Meanings Found By Machine Learning
'The autopilot would need data before it could begin a translation...' - Larry Niven, 1970.
The Future Of Elon Musk's Neuralink
'Cerebral Electromagnetic Emmission Amplification and Relay System — call it artificial telepathy, if you like.' - Richard Meredith, 1969.
BloxVox Mutes Cellphone Convos
'had he not been talking into a hush-a-phone which he had plugged into the telephone jack...' - Robert Heinlein, 1940.
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.
Extremophile Microbe Loves Space Rocks
'... designed for rooting in the metal make-up of the asteroids for vital elements.'
Magic Mushroom Nose Spray From Silo Wellness
'I don't need help... that's not my diagnosis!'
CAV-X Supercavitating Ammo Deadly Underwater
'...in the midst of this fluid, which is very dense compared with the atmosphere, shots could not go far.'
Space Domes Over-rated? Science Fiction Authors Have Answers
'This was to be roofed over, sealed, and an atmosphere provided...'
Injectable Magnetic Fluid Slows Bleeding, Aids Magneto
'There's something different about you.'
Autonomous Wheelchairs Improve Airport Mobility
'Noiselessly, on rubber-tired wheels, they journeyed down the long aisles...'
HVSD, Kitty Hawk's Electric Plane
Very quiet commuter plane offers VTOL service.
Frictionless Toilet Could Save 140 Billion Liters Of Water
'The bowl was a frictionless surface...'
Viisights AI Hones Video Surveillance
'The math boys worked it out...'
Cybertruck The Solar-Powered Steel Tortoise
'It drew its power from... sunpower screens on its low curved roof.'
Road Noise Charges Electric Cars With Peugeot Piezoelectric Billboard
''... major cities of Earth have free electrical power conveniently processed from their own noise.'
Unsinkable Metal Latest Gates Obsession
'A metal... light as cork.'
M-Blocks 2.0 Self-Assembling Robots
'Faster the cubes moved...'
NASA 'Broomstick' Recalls SciFi Ideas
'The appearance was enough like a giant witch's broom to justify the nickname.'
Orbital Display's Low Earth Orbit Advertisements
'A vast circle of scarlet stars came up into the greenish desert dusk.'
Neuromorphic Computing Hardare
'He had constructed an organ, a brain, of metal, entirely inorganic and lifeless...'
More SF in the News Stories
More Beyond Technovelgy science news stories