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Learning Resources

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Ballistic Chronograph, 1915
Machine of the Month

Ballistic Chronograph, 1915

BALLISTIC CHRONOGRAPH
James Pitkin & Co, London, C 1915, Le Boulenge type.

This clever device measures the speed of bullets.

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12 Machines of Christmas
Machine of the Month

12 Machines of Christmas

Twelve of our favorite machines profiled here.

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Heim Centerless Grinder, 1918
Machine of the Month

Heim Centerless Grinder, 1918

 In Robert V. Jacobs’ biography, Lewis R. Heim, Mechanical Genius of Modern Industry,  Jacobs describes Heim as “a mechanical genius and industrial entrepreneur whose many inventions helped usher in the […]

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Memory Drum, 1970
Machine of the Month

Memory Drum, 1970

18 inches in diameter, and it stores 500 KB.

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Blick No. 5.
Machine of the Month

Blick No. 5.

Blickensderfer Manufacturing Company, Stamford, CT 1893 Blickensderfer typewriters have an unusual claim to fame: they’re extremely portable. Advertisements for the Blick in the late 1800s featured a series of characters:   […]

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Logarithmic Slide Rule
Machine of the Month

Logarithmic Slide Rule

Let’s assume that you haven’t ever considered how to make a slide rule.  We have a machine at the Museum that did make them. It worked for the Keuffel & […]

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Bentley Engine
Machine of the Month

Bentley Engine

The Machine of the Month for June 2021 is the Bentley engine, c. 1930.

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