Audible 30-day free trial: http://www.audible.com/numberphile (sponsor) More links & stuff in full description below ↓↓↓ This video features Cliff Stoll... and the work of Leonhard Euler....
========== People living in Königsberg,in what is now Russia or Poland...Hard to say which.They had seven bridges acrosstwo shores of the Pregel River andthere's [sic] two islands!One island here...An island over here...BluhBank over here,bank over here.And they've got it set upso that there's seven bridges.One, two... So you could go, you know,you'll wanna walk over this way.You could take a horse
and bug over to that side,cross over here,cross over here,and cross over here.One, two, three,four, five, six, seven bridges!People argued: "Can you take a Sunday walk and just cross every bridge once?"So, I wanna go out somedayand just walk across this bridge,walk across this bridge,walk this bridge...Ah, I'll go this way t...