The Puppet Masters by Robert Heinlein:
Science Fiction Inventions, Technology and Ideas

Vintage Heinlein novel with well-drawn characters, great sf ideas fully realized, and really alien aliens who are yet very sympatico with humans. They're really creepy; a great Twilight Zone episode was made from this book. Select an invention:

Audio Relay - personal RFID transceiver
A communication device implanted behind the ear; also used as an alarm for wake-up calls.

Flying Saucer - alien spacecraft
Spacecraft flown by the androgynes of Titan - under control of the Puppetmasters.

Selector Card
Pneumatic delivery of book films by using a mechanical form of data storage; selector cards - probably punch cards.

Surrogate Skin
False skin that is sprayed onto damaged areas.

 

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