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$3.50
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Accessorize your life with unique stickers from an independent artist! Our vinyl stickers are available in four different sizes and are kiss-cut to create a 1/8" border around the perimeter of the design. Each sticker has an adhesive backing with plenty of stickiness to cling to any smooth surface while still being easy to remove.
Design Details
Leibniz may have been the first computer scientist and information theorist. The Step Reckoner (or Stepped Reckoner) was a digital mechanical... more
Care Instructions
Stickers should be applied to clean, smooth surfaces at room temperature.
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2 - 3 business days
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Greeting Card
iPhone Case
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Tote Bag
Round Beach Towel
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Sticker
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.
$3.50