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" I sometimes suspect that we're seeing something in the Internet as significant as the birth of cities. It's really something new, it's a new kind of civilization."
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![]() The message tree is a remarkable and creative idea, particularly in the context of the novel. The planet Lithia has virtually no naturally occurring metals on the surface and electrical power is extremely difficult to generate; how can you recreate electronic communications equipment? The answer lies in the piezoelectric effect.
This sort of message device also lent itself well to the story; the world of Lithia was one in which the biosphere was seen as important by the indigenous sapient life.
The piezoelectric effect was discovered by one of more of the Curies around 1880; it is the voltage produced between surfaces of a solid nonconducting substance (dielectric) when mechanical stress is applied. Comment/Join this discussion ( 0 ) | RSS/XML | Blog This | Additional
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Science Fiction
Timeline
ESTHER Tennis Robot V. Fact (1934) And Fiction (1952)
'THE red tennis robot scooted desperately across the court...'
Japan's LignoSat Space Wood Satellite And Dan Simmons' Treeship
'The Consul remembered his first glimpse of the kilometer-long treeship...'
Skyline Robotics Instantiates Heinlein's 'Window Willie' Skyscraper Robot
'Do you know what window washing used to cost by the hour?'
Drone Bombings In Moscow Foreseen 100 Years Ago
'Once the target is confirmed, it uses an IR laser to send a coded signal back to the parent, clearing it to attack.'
I Didn't Know You Can Already Buy Flesh Putty
'I filled your bullet hole with flesh putty and the lattice.'
'A Sign in Space' Gives Practice In Decoding ET Messages
'... it will be easy to form an alphabet which shall enable us to converse with the inhabitants of the moon.'
Melting Permafrost Endangers Infrastructure
'From the tower's huge octagonal base radiate wide silvery strips...'
EELS Exobiology Extant Life Surveyor For Enceladus
'It was about five feet long... a black bullet head and red camera eyes.'
Lazy Lawyer's Trust In ChatGPT Misplaced
'The Law Society has strict rules on the use of pseudo-intelligent software...'
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