Bill Gates And Charles Babbage

David M. Ewalt
Bill Gates And Charles Babbage

The Geek Picture of the Day calculates sums using the finite differences method.

Microsoft Corporation founder Bill Gates casts his eye over Charles Babbage's second Difference Engine, during a visit to London's Science Museum on December 3 1995.

The Difference Engine was a mechanical calculator designed by Babbage; his second model was constructed between 1847 and 1849.

(AP Photo/Stefan Rousseau)