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Image: Difference Engine No. 2 (2586076518)

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Description: <a href="http://en.wikipedia.org/wiki/Difference_engine">Difference Engine No. 2</a>, Serial #2, commissioned by <a href="http://en.wikipedia.org/wiki/Nathan_Myhrvold">Nathan Mhyrvold</a>. Designed by <a href="http://en.wikipedia.org/wiki/Charles_Babbage">Charles Babbage</a> in 1837 this marvelous machine is used to calculate polynomials using the difference method. Built using 19th century tolerances, it's calculations are so precise it can return results to 31 digits of precision. BBC story on the device can be found <a href="http://news.bbc.co.uk/2/hi/technology/7391593.stm">here</a>.
Title: Difference Engine No. 2 (2586076518)
Credit: Difference Engine No. 2
Author: Erik Pitti from San Diego, CA, USA
Usage Terms: Creative Commons Attribution 2.0
License: CC BY 2.0
License Link: https://creativecommons.org/licenses/by/2.0
Attribution Required?: Yes

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