Doorways in the Sand by Roger Zelazny:
Science Fiction Inventions, Technology and Ideas

I admit it; I love this novel and I don't care who knows it (imagine sound of window breaking as rigid editorial standards are thrown out of it). This novel has a cool plot, a frozen uncle, undercover alien cops, acrophilia and a positively cosmic viewpoint of culture. All from the point of view of Fred Cassidy, eternal student. Select an invention:

Dog Suit - costumes for aliens that work
A disguise worn by an alien detective, allowing him to look just like a domestic canine.

Rhennius Machine - reverse yourself
Device of alien manufacture, which will reverse, or turn inside out, any object passed through its mobilator.

Star Stone (Speicus) - this is a recording
An artificial intelligence shaped like a rock, which can communicate with living organisms telepathically.

 

Technovelgy.com is devoted to the creative inventions of science fiction authors and movie makers. Look for the Science Fiction Invention Category that interests you, the Glossary of Science Fiction Inventions, the Timeline of Science Fiction Inventions, or see what's New.
Find
new authors and technologies - Shop for yourself, your library and your lab.

 

 

 

 

Science Fiction
in the News

Proof Of Robothood - Not A Person
re: James Cameron
(10/19/2025)

Dancing Robots Taught Dance Moves
re: Jerome K. Jerome
(10/19/2025)

Indonesian Clans Battle
re: Jack Vance
(10/17/2025)

The 'Last Mile' In China Crowded With Delivery Robots
re: Robert Heinlein
(10/15/2025)

Tornyol Microdrone Kills Mosquitoes
re: Neal Stephenson
(10/13/2025)

PLATO Spacecraft, Hunter Of Habitable Planets, Now Ready
re: Edmond Hamilton
(10/11/2025)

Factory Humanoid Robots Built By Humanoid Robots
re: Isaac Asimov
(10/9/2025)

iPhone Air Fulfils Jobs' Promise From 2007 - A Giant Screen!
re: Kazuo Ishiguro
(10/7/2025)

ChatGPT Now Participates in Group Chats
re: James Blish
(10/5/2025)

iPhone Pocket All Sold Out!
re: Margaret St. Clair
(10/3/2025)

Did The Yautja Have These First?
re: Harry Bates
(10/1/2025)

Jetson ONE Air Races Begin, Can Air Polo Be Far Behind?
re: John Victor Peterson
(9/29/2025)

Will Space Stations Have Large Interior Spaces Again?
re: Orson Scott Card
(9/27/2025)

Mornine Sales Robot
re: Philip K. Dick
(9/25/2025)

More SF in the News

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.