Technology

Chapman, John

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Biography, Legend, & Facts

Diesinking

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metallurgy

Crash

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cloth

DuMont, Allen B.

DuMont, Allen B.

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American engineer and inventor

Waterloo Station

Waterloo Station

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railroad station, London

Free-net

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bulletin-board network

Videoconferencing

Videoconferencing

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communications

Postcard

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Facts, History, & Examples

Foam Glass

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chemical compound

Composite Material

Composite Material

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construction

Irrigation

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History, Systems, & Facts

Time-sharing

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Advantages, & Facts

Cylinder Recording

Cylinder Recording

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phonograph record

Niobium Processing

Niobium Processing

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History, Ores, Mining, & Extraction

Airfoil

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aircraft part

Rotary Engine

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