The Slide Rule Before Pocket Calculators
A slide rule turned multiplication and division into movement along marked scales. Its user still had to know whether the answer made sense.
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The 1950s.
The clicks, rings, and winding dials we remember. Explore 1950s stories in the WistMem memory archive. Search for something you remember ↗
Lost Technology stories
15 stories · Page 1 of 2
The Road Map in the Glove Box
A printed road map made a driver and navigator share a route. Its folds held alternate roads, stopping places, and the marks left by previous trips.
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When a Telegram Reached the Door
The wire could carry words quickly across distance, but a messenger often brought the paper to the recipient. The knock could bring joy, business, or fear.
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How to Find an Answer in a Britannica Set
A Britannica set asked readers to move between an index, short entries, and longer articles. The search could teach more than the original question.
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The Telex Machine in the Newsroom
Telex made distant words appear in a newsroom on paper. Editors still had to judge urgency, verify details, and turn incoming copy into a story.
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The Mimeograph Sheets from the School Office
Before easy photocopying, a mimeograph could reproduce worksheets and notices from a stencil. Preparing the master was the careful part.
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The Darkroom and the Red Safelight
A red safelight helped with some black-and-white printing steps, but exposed film was handled in darkness. A Library of Congress demonstration makes the distinction clear.
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Carbon Paper and the Copy Made While You Typed
Carbon paper made a second document at the same time as the first. It saved retyping, but every correction and misplaced sheet had consequences.
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The TV Aerial on the Roof
A rooftop aerial could turn a weak broadcast signal into a watchable picture. Its position also made television reception part of home maintenance.
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The Vinyl Record Player at Home
A stylus followed the groove to reproduce recorded sound, while the sleeve and side change made listening a small household ritual. Library of Congress guides explain the mechanism and care.
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The Red Phone Box on the Corner
The K6 telephone kiosk was designed for a practical network of public calls. Its red shape also became a familiar landmark in towns and villages.
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The Typewriter Clatter
The click of keys came from typebars, ribbon, paper, and a moving carriage. A Smithsonian description of Maya Angelou's machine shows how the parts made a typed page.
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