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Science Greeting Card featuring the photograph Step Reckoner Leibniz Mechanical #4 by Science Source

Boundary: Bleed area may not be visible.

The watermark at the lower right corner of the image will not appear on the final product.

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Step Reckoner Leibniz Mechanical #4 Greeting Card

$6.95

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Product Details

Our greeting cards are 5" x 7" in size and are produced on digital offset printers using 100 lb. paper stock. Each card is coated with a UV protectant on the outside surface which produces a semi-gloss finish. The inside of each card has a matte white finish and can be customized with your own message up to 500 characters in length. Each card comes with a white envelope for mailing or gift giving.

Design Details

Leibniz may have been the first computer scientist and information theorist. The Step Reckoner (or Stepped Reckoner) was a digital mechanical... more

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2 - 3 business days

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Step Reckoner Leibniz Mechanical #4 Photograph by Science Source

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Greeting Card Tags

greeting cards science greeting cards technology greeting cards history greeting cards historic greeting cards historical greeting cards invention greeting cards step reckoner greeting cards stepped reckoner greeting cards mechanical calculator greeting cards leibniz greeting cards gottfried leibniz greeting cards counting wheel greeting cards diagram greeting cards illustration greeting cards schematic greeting cards

Photograph Tags

photographs science photos technology photos history photos historic photos historical photos invention photos step reckoner photos stepped reckoner photos mechanical calculator photos leibniz photos gottfried leibniz photos counting wheel photos diagram photos illustration photos schematic photos

Artist's Description

Leibniz may have been the first computer scientist and information theorist. The Step Reckoner (or Stepped Reckoner) was a digital mechanical calculator invented by German mathematician Gottfried Wilhelm Leibniz around 1672 and completed in 1694. It was the first calculator that could perform all four arithmetic operations addition, subtraction, multiplication and division. Its intricate precision gear work, however, was somewhat beyond the fabrication technology of the time; mechanical problems, in addition to a design flaw in the carry mechanism, prevented the machines from working reliably. Despite the mechanical flaws of the Stepped Reckoner, it gave future calculator builders new possibilities. The operating mechanism, invented by Leibniz, called the stepped cylinder or Leibniz wheel, was used in many calculating machines for 200 years, and into the 1970s with the Curta hand calculator.

 

$6.95