Looking for design inspiration? Browse our curated collections!
Boundary: Bleed area may not be visible.
The watermark at the lower right corner of the image will not appear on the final product.
$32.00
Size
Pillow Insert
Image Size
Product Details
Our throw pillows are made from 100% spun polyester poplin fabric and add a stylish statement to any room. Pillows are available in sizes from 14" x 14" up to 26" x 26". Each pillow is printed on both sides (same image) and includes a concealed zipper and removable insert (if selected) for easy cleaning.
Design Details
Leibniz may have been the first computer scientist and information theorist. The Step Reckoner (or Stepped Reckoner) was a digital mechanical... more
Ships Within
2 - 3 business days
Photograph
Canvas Print
Framed Print
Art Print
Poster
Metal Print
Acrylic Print
Wood Print
Greeting Card
iPhone Case
Throw Pillow
Duvet Cover
Shower Curtain
Tote Bag
Round Beach Towel
Zip Pouch
Beach Towel
Weekender Tote Bag
Portable Battery Charger
Bath Towel
Apparel
Coffee Mug
Yoga Mat
Spiral Notebook
Fleece Blanket
Tapestry
Jigsaw Puzzle
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.
$32.00