The Roads Must Roll by Robert Heinlein:
Science Fiction Inventions, Technology and Ideas

This novella deals with the dangers of rapidly advancing technology. From the standpoint of "predicting the future" this story veers from our path; but the characters and situations are recognizable in our world. Select an invention:

Hush-a-Phone - noise suppression for telephones
A special kind of telephone that reduced noise while talking.

Rolling Road - public transport
A set of fast-moving strips to move people over distances.

Solar Reception Screen - photovoltaics in action
A device for converting sunlight to electricity

Tumblebug - a gyro-stabilized monocycle
A monocycle; a motorcycle that balances on a single wheel.

Two-Wheeled Car
A small passenger vehicle with two centerline wheels.

 

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.
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Science Fiction
in the News

Grok And The City Fathers From 'Cities In Flight' By James Blish
re: James Blish
(5/11/2026)

Why Not Move A Warehouse District?
re: Jane Webb Loudon
(5/9/2026)

Will An AI Found A New Religion?
re: Frank Herbert
(5/7/2026)

Terraformer Industries Make Methane
re: Jack Williamson
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I Need An Outdoor Spherical Display
re: Iain M. Banks
(5/3/2026)

Worm Disrupts Physics Simulations Undetected For A Decade
re: Philip K. Dick
(5/1/2026)

Muxcard Redditor's DIY Credit Card-Sized Computer
re: Various
(4/29/2026)

'Soft Assembly' Fashions That Fashion Themselves On The Wearer
re: JG Ballard
(4/27/2026)

Orwell's Nightmare Of AI-Written Novels Comes To Pass
re: George Orwell
(4/25/2026)

ISS Plagued By Leak - Again!
re: Robert Heinlein
(4/23/2026)

Ridiculous 'Ghost Murmur' Tech Still Science Fiction
re: Roger Zelazny
(4/21/2026)

Outdoor Video Screens Can Be Arbitrarily Large
re: HG Wells
(4/19/2026)

Infrared Contact Lenses To See In The Dark
re: William Gibson
(4/17/2026)

What'll You Have? Extinct Animals Returned, Or Synthetic Eggshells?
re: Michael Crichton
(4/15/2026)

More SF in the News

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