Four-Day Planet by H. Beam Piper:
Science Fiction Inventions, Technology and Ideas

Enjoyable novel by Piper; the most interesting main character is the planet Fenris. Days that last for 2,000 hours and four days per year; too hot or too cold. This book recalls some of Heinlein juveniles of the fifties. Select an invention:

Carniculture Plants - grow your own meat
Industrial plants that grow meat protein.

Recording Radio
A handheld device that both recorded sound and transmitted it live to a remote broadcasting location.

Teleprinter
A device that printed out a copy of today's newspaper.

Transmit Camera
A camera that both takes pictures and uploads it directly to a news station.

 

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Science Fiction
in the News

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Maybe It's Too Soon To Require Autonomous Mode
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Heat Waver - The First Ever Combo Solar Collector And Wind Turbine
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Mori3 Autonomous Shapeshifting Robot
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Tesla Seeks 'Tesla Robotaxi' And 'Robobus' Trademarks Ignoring Prior Art
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(5/23/2025)

More SF in the News

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