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Thumbnail of How marbles are made

How marbles are made

Published 2 years ago in Documentary. Submitted by manro

Thumbnail of MAN EBA - emergency braking system.

MAN EBA - emergency braking system.

Published 2 years ago in Documentary. Submitted by thundersnow

MAN's new generation of the EBA emergency braking system combines information from the radar sensor in the front end and from the windscreen-mounted camera. This sensor fusion allows the system to make trustworthy interpretations of situations on the road. Vehicles in front and s…
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Thumbnail of Manufacturing plywood boards: then and now

Manufacturing plywood boards: then and now

Published 2 years ago in Documentary. Submitted by manro

Plywood is a simple material made by glueing together thin sheets of wood, known as veneers or plies. These basic elements have remained broadly the same throughout its history. The most significant breakthrough in its production came in the early 1800s with the development of steam-powered machines that could cut veneers cheaply. The most influential of these was the rotary veneer cutter.

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Thumbnail of Twins reunited after 70 years apart

Twins reunited after 70 years apart

Published 3 years ago in Documentary

Thumbnail of Lunch Atop A Skyscraper: The Story Behind The 1932 Photo

Lunch Atop A Skyscraper: The Story Behind The 1932 Photo

Published 348 days ago in Documentary. Submitted by sux2bu

We don\'t know their names, nor the photographer who immortalized them, but these men lunching 800 feet up show the daredevil spirit behind Manhattan\'s vertical expansion.