From: "M. Edward (Ed) Borasky" Date: 2007-10-04T13:37:02+09:00 Subject: Re: A Must Read!!! John Joyce wrote: > > On Oct 3, 2007, at 10:08 AM, M. Edward (Ed) Borasky wrote: > >> Michael Glaesemann wrote: >>> On Oct 3, 2007, at 7:53 , Michael T. Richter wrote: >>>> (I have similar questions about people acting as if functional >>>> programming -- '50s -- were the New Deal.) >>> Huh. I haven't seen many people claiming Roosevelt had much influence >>> on computer science. >>> Michael Glaesemann >>> grzm seespotcode net >> >> Well ... he did fund the Manhattan Project, after all. Most of the >> calculations for that, however, were done by rooms full of men and >> women operating mechanical desk calculators, under the direction of >> John Von Neumann and others. These men and women were known as >> "computers", and in many cases had college degrees in mathematics. >> >> The genius of Von Neumann was that he saw that such calculations could >> be done faster, more accurately and with lower cost electronically. >> But it didn't happen until *after* the Manhattan Project was over and >> FDR was in his grave. >> > Slide Rule > > Uh ... try integrating PDEs with a room full of people running slide rules some time. :) The electronic equivalent of the slide rule, the analog computer, was limited to a precision of at best five decimal digits, and could integrate *ordinary* differential equations easily. But partial differential equations are a whole 'nutha ball game. :)