![Pascaline; a mechanical calculator invented by Blaise Pascal in 1642. The wheels are numbered from 0-10 and correspond to units, tens, hundreds, thousands, tens of thousands, and hundreds of thousands Stock Photo - Alamy Pascaline; a mechanical calculator invented by Blaise Pascal in 1642. The wheels are numbered from 0-10 and correspond to units, tens, hundreds, thousands, tens of thousands, and hundreds of thousands Stock Photo - Alamy](https://c8.alamy.com/comp/G15G01/pascaline-a-mechanical-calculator-invented-by-blaise-pascal-in-1642-G15G01.jpg)
Pascaline; a mechanical calculator invented by Blaise Pascal in 1642. The wheels are numbered from 0-10 and correspond to units, tens, hundreds, thousands, tens of thousands, and hundreds of thousands Stock Photo - Alamy
![World of Engineering on X: "Historic invention of the day: 1642: Mechanical calculator. The Pascaline is built by Blaise Pascal https://t.co/Ap0SBA8cDl" / X World of Engineering on X: "Historic invention of the day: 1642: Mechanical calculator. The Pascaline is built by Blaise Pascal https://t.co/Ap0SBA8cDl" / X](https://pbs.twimg.com/media/E7S8YaOXEAET1Rf.jpg)
World of Engineering on X: "Historic invention of the day: 1642: Mechanical calculator. The Pascaline is built by Blaise Pascal https://t.co/Ap0SBA8cDl" / X
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Amazon.com: Posterazzi Pascaline Mechanical Calculator Poster Print by Science Source, (24 x 18), Varies: Posters & Prints
![Showing the inside of a Pascaline mechanical calculator invented by Blaise Pascal in 1642. The wheels are numbered from 0-10 and correspond to units, tens, hundreds, thous - Album alb3808842 Showing the inside of a Pascaline mechanical calculator invented by Blaise Pascal in 1642. The wheels are numbered from 0-10 and correspond to units, tens, hundreds, thous - Album alb3808842](https://www.album-online.com/photos/prev/NTdhMWNiMA/album_alb3808842.jpg)