Prelude to Foundation by Isaac Asimov:
Science Fiction Inventions, Technology and Ideas

In this novel, Asimov provides background on Hari Seldon, the founding psychohistorian of the Foundation books. Seldon decides that he needs to start with something a bit smaller than the entire Empire, perhaps the origin world of humans - a piece of knowledge now lost. Select an invention:

Air-Taxi - hail the skies
A flying taxicab with autonomous features.

Book-Film - literary storage
A storage medium for books.

Dainties - tasty spheres
Flavor spheres artificially grown.

Gravitic Lift
An elevator with no visible means of support.

Head-Molding Skincaps -
Get a smooth pate without shaving.

Jet-Down - explore planets
A spacecraft able to explore planetary surfaces.

Microfarm
Food creation without soil.

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